Members of a bowling league play thousands of combined games over the course of a season. Suppose that the scores of individual games have a known standard deviation of o = 30 pins. Isla plans on taking a
random sample of n games from this population to make a 95% confidence interval for the mean score.
She wants the margin of error to be no more than 10 pins.
Which of these is the smallest approximate sample size required to obtain the desired margin of error?

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches