# Answer on Statistics and Probability Question for Jessica Smith

Question #6575

PROBLEM 1

The (rounded) average price for a box of cookies obtained from 28 bakeries is listed below:

40 23 11 20 22 20 45 15 28 22

22 18 72 19 22 28 27 19 23 46

45 15 30 10 56 15 17 59

a. Construct a grouped frequency distribution and a cumulative frequency distribution with 6 classes.

Note: give a brief explanation by specifying the covered steps.

Grouped Frequency Distribution

Step 1. Find Range

Step 2. Compute classes’ width

Step 3. Create class boundaries

Step 4. Tally the data and find the numerical frequencies from the tally

Cumulative Frequency Distribution

Step 1. Find Range

Step 2. Compute classes’ width

Step 3. Find the frequencies and the corresponding percentage

b. Use Excel to construct a Histogram. (Tools Data Analysis Histogram for input range select the given values, for the bin range select the classes upper boundaries values check Chart Output).

The (rounded) average price for a box of cookies obtained from 28 bakeries is listed below:

40 23 11 20 22 20 45 15 28 22

22 18 72 19 22 28 27 19 23 46

45 15 30 10 56 15 17 59

a. Construct a grouped frequency distribution and a cumulative frequency distribution with 6 classes.

Note: give a brief explanation by specifying the covered steps.

Grouped Frequency Distribution

Step 1. Find Range

Step 2. Compute classes’ width

Step 3. Create class boundaries

Step 4. Tally the data and find the numerical frequencies from the tally

Cumulative Frequency Distribution

Step 1. Find Range

Step 2. Compute classes’ width

Step 3. Find the frequencies and the corresponding percentage

b. Use Excel to construct a Histogram. (Tools Data Analysis Histogram for input range select the given values, for the bin range select the classes upper boundaries values check Chart Output).

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