Ask question

Ask question

All categories

4 years ago

13

Construct and interpret a 95% confidence interval estimate for the difference in the mean number of cell phone calls per month f

or 18-24-year-olds and 45-54-year-olds.

1 answer:

dsp734 years ago

5 0

Answer:

25 per month

Step-by-step explanation:

You might be interested in

Elena has $5 for pencils. Each pencil costs $0.30. How many pencils can she buy? *No run-on decimals please!*

aleksley [76]

Answer:

she could by 16 pencils with 20 cents left over

Step-by-step explanation:

so the fraction is 16 and 2/3

so she could buy 16 pencils and have 20 cents leftover

7 0

2 years ago

Read 2 more answers

Triangle ABC was transformed to be triangle DEF using one transformation.

Mice21 [21]

Your answer is correct.

8 0

3 years ago

A DVD has a diameter of 18 centimeters. What is the area of the DVD? Round your answer to the nearest hundredth. Use 3.14 for π.

musickatia [10]

The area is about 113.04 centimeters

3 0

3 years ago

Read 2 more answers

Find the area of the white region

klemol [59]

Answer:

Area = 51.89cm^2

Step-by-step explanation:

$The- region- is- a -segment\\r = 7cm\\\alpha = 150\\A = \frac{\alpha }{360} \times \pi r^2 -\frac{1}{2} \times r^2Sin\alpha \\\\A = \frac{150}{360} \times 3.142 \times7^2 -\frac{1}{2} \times 7^2 \times Sin 150\\A =5/12 \times 3.142 \times49- (1/2\times 49 \times1/2)\\A = 64.149-49/4\\A = 51.89$

3 0

3 years ago

Terry has a number cube that is numbered from 1 to 6. She rolls the cube 50 times. Which equation can be used to predict the num

choli [55]

Answer:

Step-by-step explanation:

2/6(50)

because 2 of the 6 is greater than 4

with 50 rolls

3 0

4 years ago