The wait times in the drive-thru of a local coffee shop are Normally distributed, with a mean of 4.3 minutes and a standard deviation of 0.9 minutes. Use the z-table to answer the question.

What wait time is the 12th percentile of the wait times?

2.55 minutes
3.24 minutes
3.45 minutes
4.04 minutes

The 12th percentile is found on the LEFT of the graph since it is 0.12.

Since it’s on the left, the percentage will be NEGATIVE.

The z-score is -1.175

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

i dont know

step-by-step explanation:

the reason i dont know is because i have not taken this class and for that reason i haven't learned this stuff

hope i could