One and Two Variable Statistics, Assignments of Mathematics

A measure of central tendency refers to a central or value in a data set. Measures of central tendency can also be classified as summary statistics as they summarize a data set.

Typology: Assignments

2022/2023

Uploaded on 07/13/2023

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Assignement No. 5
The players on a school baseball team compared their batting averages and the
hours they spent at the batting practice
Batting average
Practice hours
0.22
20
0.215
18
0.185
15
0.170
14
0.200
18
0.245
22
0.230
19
0.165
15
0.205
17
1. Identify the independent variable and the dependent variable. Explain your choice.
2. Produce a scatter plot for the data and classify the linear correlation.
3. Determine the correlation coefficient
4. find the equation of the line of best fit.
5. Use this linear model to predict the batting average for players who had batting practice for:
i) 16h ii) 35h.
You can use the formula on the second page.
pf2

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Assignement No. 5

The players on a school baseball team compared their batting averages and the

hours they spent at the batting practice

Batting average Practice hours 0.22 20 0.215 18 0.185 15 0.170 14 0.200 18 0.245 22 0.230 19 0.165 15 0.205 17

1. Identify the independent variable and the dependent variable. Explain your choice.

2. Produce a scatter plot for the data and classify the linear correlation.

3. Determine the correlation coefficient

4. find the equation of the line of best fit.

5. Use this linear model to predict the batting average for players who had batting practice for:

i) 16h ii) 35h.

You can use the formula on the second page.

2 2 2 2

n x x n y y

n xy x y

r

y  ax  b

2 2

n x x

n xy x y

a

b  y  ax