Waiting times (in minutes) of customers in a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. find the mean and median for each of the twosamples, then compare the two sets of results.

single line: 6.5 6.6 6.7 6.8 7.0 7.3 7.6 7.8 7.8 7.8

individual lines: 4.2 5.2 5.9 6.3 6.5 7.8 7.8 8.7 9.4 10.1

the mean waiting time for customers in a single line is _ minutes.

the median waiting time for customers in a single line is _minutes.

the mean waiting time for customers in individual lines is _minutes.

the median waiting time for customers in individual lines is _minutes.

determine whether there is a difference between the two data sets that is not apparent from a comparison of the measures of center. if so, what is it?

a. the times for customers in individual lines are much more varied than the times for customers in a single line.

b. the times for customers in a single line are much more varied than the times for customers in individual lines.

c. there is no difference between the two data sets.

C.There is no difference between the two data sets.

Step-by-step explanation:

using the calculation of mean = sum of data/no of people

and the median = the middle value when arrange in ascending order

Single Line: 6.5 6.6 6.7 6.8 7.0 7.3 7.6 7.8 7.8 7.8

 The mean waiting time for customers in a single line is 7.19 minutes.

The median waiting time for customers in a single line is 7.15 minutes.

Individual Lines: 4.2 5.2 5.9 6.3 6.5 7.8 7.8 8.7 9.4 10.1

The mean waiting time for customers in individual lines is 7.19 minutes.

The median waiting time for customers in individual lines is 7.15 minutes.

Determine whether there is a difference between the two data sets that is not apparent from a comparison of the measures of center. If so, what is it?

there is no difference

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560