7.2 Frequency and Probability Distributions

• A production manager counted the number of items produced each hour during a 40-hour work week. The frequency is given in the table. Determine the relative frequency distribution and create a histogram.

Number produced during hour

Number of occurrences

Relative Frequency

50 251 052 453 654 1455 856 457 058 059 2

7.2 Frequency and Probability Distributions

50 51 52 53 54 55 56 57 58 590

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

Relative Frequency of Items Produced

7.2 Frequency and Probability Distributions

Two dealerships are for sale and have compiled data for respective buyers. Dealership A provided 1 year worth of data. Dealership B provided two years worth of data.

Weekly Sales

Dealership A

Relative Frequency

Dealership B

Relative Frequency

5 2 206 2 07 13 08 20 109 10 1210 4 5011 1 12

7.2 Frequency and Probability Distributions

5 6 7 8 9 10 110

0.050.1

0.150.2

0.250.3

0.350.4

0.450.5

Relative Frequency of Dealership A

5 6 7 8 9 10 110

0.050.1

0.150.2

0.250.3

0.350.4

0.450.5

Relative Frequency of Dealership B

7.2 Frequency and Probability Distributions

• Problems to complete from 7.2– Pg. 347 #1, 2, 5, 11, 21