Question

Question

Anthony wants to know the average daily high temperatures in his town during the summer. He chose two random samples of 10 consecutive days and recorded the daily high temperatures. The daily high temperatures in Fahrenheit are as follows.

Sample 1: 78 82 85 87 90 85 79 86 91 88
Sample 2: 81 79 80 86 89 92 82 88 84 87

Find the mean daily high temperatures of each sample and calculate the difference between these mean daily high temperatures.

(2 points)
The mean daily high temperature of Sample 1 is _____
°.
The mean daily high temperature of Sample 2 is _____
°.
The mean daily high temperatures of the two samples differ by _____

°.

Answer 1

The mean daily high temperature of Sample 1 is 84.3°F.
The mean daily high temperature of Sample 2 is 84.8°F.
The mean daily high temperatures of the two samples differ by 0.5°F.

Answer 2

The data from two random samples of 100 students regarding what pet they own is given below.

Dog Cat Bird Total
Sample 1 54 38 8 100
Sample 2 39 49 12 100
Based on the two samples, what percentage of students own a bird as a pet?

(1 point)

Answer 3

To calculate the percentage of students who own a bird as a pet based on the two samples:

For Sample 1:
Number of students who own a bird = 8
Total number of students in Sample 1 = 100

Percentage of students who own a bird in Sample 1 = (8 / 100) * 100 = 8%

For Sample 2:
Number of students who own a bird = 12
Total number of students in Sample 2 = 100

Percentage of students who own a bird in Sample 2 = (12 / 100) * 100 = 12%

Therefore, based on the two samples, the percentage of students who own a bird as a pet is 8% in Sample 1 and 12% in Sample 2.