Math  /  Data & Statistics

QuestionMean, Median, Mode \& Range
Find the mean, median, mode and range for each set of numbers. 1) 24,31,12,38,12,1524,31,12,38,12,15
Mean : \square Median : \square Mode : \square Range : \square 3) 53,13,34,41,26,61,34,13,6953,13,34,41,26,61,34,13,69
Mean : \square \square Mode : \square Median :
Range : \square 5) 92,63,22,80,63,71,44,3592,63,22,80,63,71,44,35 \square Mean : Median : \square Mode : \square Range : \square 7) 72,43,15,66,32,72,52,19,28,8172,43,15,66,32,72,52,19,28,81
Mean : \square Median : \square Mode : \square Range : \square 9) 12,46,32,18,26,41,4612,46,32,18,26,41,46
Mean : \square Median : \square Mode : \square Range : \square 2) 5,28,16,32,5,16,48,29,5,355,28,16,32,5,16,48,29,5,35
Mean : \square Median : \square \square 4) 85,58,72,85,46,9385,58,72,85,46,93
Mean : \square Median : \square Mode : \square Range : \square 6) 39,82,74,96,64,52,7439,82,74,96,64,52,74
Mean : \square Median : \square Mode : \square Range : \square 8) 40,90,36,68,90,11,88,5440,90,36,68,90,11,88,54
Mean : \square Median : \square Mode : \square Range : \square 10) 63,40,51,70,36,21,51,28,1963,40,51,70,36,21,51,28,19
Mean : \square Median : \square Mode : \square Range : \square

Studdy Solution

STEP 1

What is this asking? We need to find the mean, median, mode, and range for a bunch of number sets. Watch out! Don't mix up mean, median, and mode!
And remember, range isn't just the biggest number, it's the *difference* between the biggest and smallest.

STEP 2

1. Problem 1
2. Problem 5
3. Problem 9

STEP 3

To find the mean, we **add up** all the numbers and then **divide** by how many numbers there are.
So, we have 24+31+12+38+12+15=13224 + 31 + 12 + 38 + 12 + 15 = 132.
There are **6** numbers, so the mean is 132÷6=22132 \div 6 = 22.
The **mean is 22**!

STEP 4

For the median, we need to put the numbers in order.
That's 12,12,15,24,31,3812, 12, 15, 24, 31, 38.
Since there are an even number of values, the median is the average of the two middle numbers.
Those are **15** and **24**. (15+24)÷2=39÷2=19.5(15 + 24) \div 2 = 39 \div 2 = 19.5.
The **median is 19.5**!

STEP 5

The mode is the number that appears most often.
Here, **12** shows up twice, which is more than any other number.
So, the **mode is 12**!

STEP 6

The range is the difference between the largest and smallest numbers.
Our biggest number is **38** and our smallest is **12**. 3812=2638 - 12 = 26.
The **range is 26**!

STEP 7

First, add all the numbers: 92+63+22+80+63+71+44+35=47092 + 63 + 22 + 80 + 63 + 71 + 44 + 35 = 470.
There are **8** numbers, so 470÷8=58.75470 \div 8 = 58.75.
The **mean is 58.75**!

STEP 8

Let's order them: 22,35,44,63,63,71,80,9222, 35, 44, 63, 63, 71, 80, 92.
We have an even number of values, so we average the two middle ones: 6363 and 6363. (63+63)÷2=126÷2=63(63 + 63) \div 2 = 126 \div 2 = 63.
The **median is 63**!

STEP 9

The number **63** appears twice, more than any other number.
The **mode is 63**!

STEP 10

The largest number is **92** and the smallest is **22**. 9222=7092 - 22 = 70.
The **range is 70**!

STEP 11

Add 'em up: 12+46+32+18+26+41+46=22112 + 46 + 32 + 18 + 26 + 41 + 46 = 221.
There are **7** numbers, so 221÷7=31.57221 \div 7 = 31.57 when rounded to two decimal places.
The **mean is approximately 31.57**!

STEP 12

In order: 12,18,26,32,41,46,4612, 18, 26, 32, 41, 46, 46.
The middle number is **32**.
The **median is 32**!

STEP 13

**46** appears twice, which is more than any other number.
The **mode is 46**!

STEP 14

Largest is **46**, smallest is **12**. 4612=3446 - 12 = 34.
The **range is 34**!

STEP 15

Problem 1: Mean = 22, Median = 19.5, Mode = 12, Range = 26 Problem 5: Mean = 58.75, Median = 63, Mode = 63, Range = 70 Problem 9: Mean ≈ 31.57, Median = 32, Mode = 46, Range = 34

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