3.2 Section Exercise 4 Question 5 of 11 (1 point) | Attempt 1 of Unlimited | View question in a popup
Pay your bills: In a large sample of customer accounts, a utility company determined that the average number of days between
when a bill was sent out and when the payment was made is 27 with a standard deviation of 3 days. Assume the data to be
approximately bell-shaped.
TM
Part: 0/3
Part 1 of 3
G
(a) Between what two values will approximately 95% of the numbers of days be?
do
X
alo
and
Approximately 95% of the customer accounts have payment made between
days.

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west

slope= 1

y-inter slope= 0

x       y

o     0

1       1

2     2

ect.

step-by-step explanation: