refactor(curriculum): updating step 22 of stats calculator project (#…

…54312)

Co-authored-by: Naomi <nhcarrigan@gmail.com>
Co-authored-by: Sem Bauke <semboot699@gmail.com>

curriculum/challenges/_meta/learn-advanced-array-methods-by-building-a-statistics-calculator/meta.json

@@ -98,140 +98,152 @@
       "title": "Step 21"
     },
     {
-      "id": "635090f47eb6d9563a6fed05",
+      "id": "661890c4abae9f2a0eddad6b",
       "title": "Step 22"
     },
     {
-      "id": "635091f8dbf554575fb5aa0c",
+      "id": "661899113600ef307d8a7487",
       "title": "Step 23"
     },
     {
-      "id": "6352e79d15aae30fac58f48e",
+      "id": "6618a3264f955339063d3328",
       "title": "Step 24"
     },
     {
-      "id": "6352e80e024e89111600edfb",
+      "id": "6618abf6368d073f0f659780",
       "title": "Step 25"
     },
     {
-      "id": "6352e93db104661305c5f658",
+      "id": "635090f47eb6d9563a6fed05",
       "title": "Step 26"
     },
     {
-      "id": "6352e96d2604f813c656750b",
+      "id": "6352e79d15aae30fac58f48e",
       "title": "Step 27"
     },
     {
-      "id": "65aac0678d51b3f1a0cb8061",
+      "id": "6352e80e024e89111600edfb",
       "title": "Step 28"
     },
     {
-      "id": "65c4dc57418fd6bfc710d61d",
+      "id": "6352e93db104661305c5f658",
       "title": "Step 29"
     },
     {
-      "id": "65ca2d0625aa3a3201067f70",
+      "id": "6352e96d2604f813c656750b",
       "title": "Step 30"
     },
     {
-      "id": "65e62efde0592ec4b4bb6a69",
+      "id": "65aac0678d51b3f1a0cb8061",
       "title": "Step 31"
     },
     {
-      "id": "65f83a7ca7047318e3ccff7c",
+      "id": "65c4dc57418fd6bfc710d61d",
       "title": "Step 32"
     },
     {
-      "id": "6352ea3a5b79e614ee2282fd",
+      "id": "65ca2d0625aa3a3201067f70",
       "title": "Step 33"
     },
     {
-      "id": "6352ebd3ab962c168a122e85",
+      "id": "65e62efde0592ec4b4bb6a69",
       "title": "Step 34"
     },
     {
-      "id": "6352ec8b9c70fd17b8c7ba3f",
+      "id": "65f83a7ca7047318e3ccff7c",
       "title": "Step 35"
     },
     {
-      "id": "6352ecef9f045519063da9b3",
+      "id": "6352ea3a5b79e614ee2282fd",
       "title": "Step 36"
     },
     {
-      "id": "6352edee8a4de01ad693f0e4",
+      "id": "6352ebd3ab962c168a122e85",
       "title": "Step 37"
     },
     {
-      "id": "6352ee566a59d31d24bde74b",
+      "id": "6352ec8b9c70fd17b8c7ba3f",
       "title": "Step 38"
     },
     {
-      "id": "6352f09b1e53a420e7873344",
+      "id": "6352ecef9f045519063da9b3",
       "title": "Step 39"
     },
     {
-      "id": "6352f179bdca23221298a5ba",
+      "id": "6352edee8a4de01ad693f0e4",
       "title": "Step 40"
     },
     {
-      "id": "6352f2526dccb523150b64fb",
+      "id": "6352ee566a59d31d24bde74b",
       "title": "Step 41"
     },
     {
-      "id": "6352f2a24eb71b24284ca2b6",
+      "id": "6352f09b1e53a420e7873344",
       "title": "Step 42"
     },
     {
-      "id": "6352faf71a9db52631864634",
+      "id": "6352f179bdca23221298a5ba",
       "title": "Step 43"
     },
     {
-      "id": "6352fbb93a91a8272f838d42",
+      "id": "6352f2526dccb523150b64fb",
       "title": "Step 44"
     },
     {
-      "id": "6352fcb156834128001ea945",
+      "id": "6352f2a24eb71b24284ca2b6",
       "title": "Step 45"
     },
     {
-      "id": "6352fce75b2d3b2924930f1e",
+      "id": "6352faf71a9db52631864634",
       "title": "Step 46"
     },
     {
-      "id": "6352fe473d53592a40ae403b",
+      "id": "6352fbb93a91a8272f838d42",
       "title": "Step 47"
     },
     {
-      "id": "6352fed209792d2b89e92ea1",
+      "id": "6352fcb156834128001ea945",
       "title": "Step 48"
     },
     {
-      "id": "6352ff27e0e51b2c7dce0010",
+      "id": "6352fce75b2d3b2924930f1e",
       "title": "Step 49"
     },
     {
-      "id": "6352ffe4cfafa72d595a0007",
+      "id": "6352fe473d53592a40ae403b",
       "title": "Step 50"
     },
     {
-      "id": "6353004b235d7a2e0b913f2b",
+      "id": "6352fed209792d2b89e92ea1",
       "title": "Step 51"
     },
     {
-      "id": "6353024f5eab012fa2f57eec",
+      "id": "6352ff27e0e51b2c7dce0010",
       "title": "Step 52"
     },
     {
-      "id": "6353028147d3c7309017216a",
+      "id": "6352ffe4cfafa72d595a0007",
       "title": "Step 53"
     },
     {
-      "id": "635302be760d6031d11a06cd",
+      "id": "6353004b235d7a2e0b913f2b",
       "title": "Step 54"
     },
     {
-      "id": "6374249d3fbf2a5b079ba036",
+      "id": "6353024f5eab012fa2f57eec",
       "title": "Step 55"
+    },
+    {
+      "id": "6353028147d3c7309017216a",
+      "title": "Step 56"
+    },
+    {
+      "id": "635302be760d6031d11a06cd",
+      "title": "Step 57"
+    },
+    {
+      "id": "6374249d3fbf2a5b079ba036",
+      "title": "Step 58"
     }
   ]
 }

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/635090f47eb6d9563a6fed05.md

@@ -1,46 +1,35 @@
 ---
 id: 635090f47eb6d9563a6fed05
-title: Step 22
+title: Step 26
 challengeType: 0
-dashedName: step-22
+dashedName: step-26
 ---
 
 # --description--
 
-The next step is to find the number in the middle of the list. If the list has an odd number of numbers, the middle number is the median. If the list has an even number of numbers, the median is the average of the two middle numbers.
+Now it is time to apply what you have learned to the `getMedian` function.
 
-You can check if a number is even or odd with the <dfn>modulus operator</dfn>, which is represented by the `%` symbol. This operator returns the remainder of the division of two numbers. If the remainder is `0`, the number is even. If the remainder is `1`, the number is odd:
+Inside your `getMedian` function, check if the length of `array` is even. If it is, find the middle two numbers, calculate their mean, and return the result. If the length of `array` is odd, return the middle number.
 
-```js
-array.length % 2 === 0;
-```
+Make sure to work with the `sorted` array to find the middle numbers. 
 
-Declare a `median` variable. Using the ternary operator, check if the length of `array` is even. If the length of `array` is even, find the two middle numbers and calculate the mean of those numbers. If the length of `array` is odd, find the middle number and assign it to the `median` variable.
+Also if you need help, refer back to the previous few steps to see how to find the median for an array.
 
 # --hints--
 
-Your `getMedian` function should have a `median` variable.
-
-```js
-assert.match(getMedian.toString(), /median\s*=/);
-```
-
-Your `median` variable should use a ternary operator to check if the `array.length` is even.
-
-```js
-assert.match(getMedian.toString(), /median\s*=\s*array\.length\s*%\s*2\s*===\s*0\s*\?/);
-```
 
-If `array.length` is even, pass an array with the two middle numbers from the `sorted` array to the `getMean` function. The first item in the array argument should be the value at index `array.length / 2` from `sorted` and the second should use the value at the index `array.length / 2 - 1` from `sorted`.
+Your `getMedian` function should return the mean of the middle two numbers if the array length is even.
 
 ```js
-assert.match(getMedian.toString(), /median\s*=\s*array\.length\s*%\s*2\s*===\s*0\s*\?\s*getMean\(\s*\[\s*sorted\s*\[\s*array\.length\s*\/\s*2\s*\]\s*,\s*sorted\s*\[\s*array\.length\s*\/\s*2\s*-\s*1\s*\]\s*\]\s*\)\s*\:/);
+assert.equal(getMedian([1,2,3,4,5,6]), 3.5);
+assert.equal(getMedian([1,2,3,4,5,6,7,8,9,10]), 5.5);
 ```
 
-If the `array.length` is odd, your `median` variable should assign the middle number to the `median` variable. The middle number is the value of `sorted` at `Math.floor(array.length / 2)`.
+Your `getMedian` function should return the middle number if the array length is odd.
 
 ```js
-assert.match(getMedian.toString(), /median\s*=\s*array\.length\s*%\s*2\s*===\s*0\s*\?\s*getMean\(\s*\[\s*sorted\s*\[\s*array\.length\s*\/\s*2\s*\]\s*,\s*sorted\s*\[\s*array\.length\s*\/\s*2\s*-\s*1\s*\]\s*\]\s*\)\s*\:\s*sorted\s*\[\s*Math\.floor\(\s*array\.length\s*\/\s*2\s*\)\s*\]\s*;/);
+assert.equal(getMedian([1,2,3,4,5]), 3);
+assert.equal(getMedian([1,2,3,4,5,6,7,8,9]), 5);
 ```
 
 # --seed--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352e79d15aae30fac58f48e.md

@@ -1,8 +1,8 @@
 ---
 id: 6352e79d15aae30fac58f48e
-title: Step 24
+title: Step 27
 challengeType: 0
-dashedName: step-24
+dashedName: step-27
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352e80e024e89111600edfb.md

@@ -1,8 +1,8 @@
 ---
 id: 6352e80e024e89111600edfb
-title: Step 25
+title: Step 28
 challengeType: 0
-dashedName: step-25
+dashedName: step-28
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352e93db104661305c5f658.md

@@ -1,8 +1,8 @@
 ---
 id: 6352e93db104661305c5f658
-title: Step 26
+title: Step 29
 challengeType: 0
-dashedName: step-26
+dashedName: step-29
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352e96d2604f813c656750b.md

@@ -1,8 +1,8 @@
 ---
 id: 6352e96d2604f813c656750b
-title: Step 27
+title: Step 30
 challengeType: 0
-dashedName: step-27
+dashedName: step-30
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352ea3a5b79e614ee2282fd.md

@@ -1,8 +1,8 @@
 ---
 id: 6352ea3a5b79e614ee2282fd
-title: Step 33
+title: Step 36
 challengeType: 0
-dashedName: step-33
+dashedName: step-36
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352ebd3ab962c168a122e85.md

@@ -1,8 +1,8 @@
 ---
 id: 6352ebd3ab962c168a122e85
-title: Step 34
+title: Step 37
 challengeType: 0
-dashedName: step-34
+dashedName: step-37
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352ec8b9c70fd17b8c7ba3f.md

@@ -1,8 +1,8 @@
 ---
 id: 6352ec8b9c70fd17b8c7ba3f
-title: Step 35
+title: Step 38
 challengeType: 0
-dashedName: step-35
+dashedName: step-38
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352ecef9f045519063da9b3.md

@@ -1,8 +1,8 @@
 ---
 id: 6352ecef9f045519063da9b3
-title: Step 36
+title: Step 39
 challengeType: 0
-dashedName: step-36
+dashedName: step-39
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352edee8a4de01ad693f0e4.md

@@ -1,8 +1,8 @@
 ---
 id: 6352edee8a4de01ad693f0e4
-title: Step 37
+title: Step 40
 challengeType: 0
-dashedName: step-37
+dashedName: step-40
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352ee566a59d31d24bde74b.md

@@ -1,8 +1,8 @@
 ---
 id: 6352ee566a59d31d24bde74b
-title: Step 38
+title: Step 41
 challengeType: 0
-dashedName: step-38
+dashedName: step-41
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352f09b1e53a420e7873344.md

@@ -1,8 +1,8 @@
 ---
 id: 6352f09b1e53a420e7873344
-title: Step 39
+title: Step 42
 challengeType: 0
-dashedName: step-39
+dashedName: step-42
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352f179bdca23221298a5ba.md

@@ -1,8 +1,8 @@
 ---
 id: 6352f179bdca23221298a5ba
-title: Step 40
+title: Step 43
 challengeType: 0
-dashedName: step-40
+dashedName: step-43
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352f2526dccb523150b64fb.md

@@ -1,8 +1,8 @@
 ---
 id: 6352f2526dccb523150b64fb
-title: Step 41
+title: Step 44
 challengeType: 0
-dashedName: step-41
+dashedName: step-44
 ---
 
 # --description--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-advanced-array-methods-by-building-a-statistics-calculator/6352f2a24eb71b24284ca2b6.md

@@ -1,8 +1,8 @@
 ---
 id: 6352f2a24eb71b24284ca2b6
-title: Step 42
+title: Step 45
 challengeType: 0
-dashedName: step-42
+dashedName: step-45
 ---
 
 # --description--