Answer:
hi
Step-by-step explanation:
hi because i just want the points
Answer:
I'm pretty sure the answer is B
x =(2-√24)/-2=1+√ 6 = 1.449
x =(2+√24)/-2=1-√ 6 = -3.449
Answer:
i) 0.872
ii) 0.300
iii) 0.76
iv) 0.704
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = $261.50 per month
Standard Deviation, σ = $16.25
We are given that the distribution of monthly food cost for a 14- to 18-year-old male is a bell shaped distribution that is a normal distribution.
Formula:
a) P(Less than $280)
Calculation the value from standard normal z table, we have,
b) P(More than $270)
P(x > 270)
Calculation the value from standard normal z table, we have,
c) P(More than $250)
P(x > 250)
Calculation the value from standard normal z table, we have,
d) P(Between $240 and $275)
![P(240 \leq x \leq 275) = 70.4\%](https://tex.z-dn.net/?f=P%28240%20%5Cleq%20x%20%5Cleq%20275%29%20%3D%2070.4%5C%25)
e) Thus, 0.704 is the probability that the monthly food cost for a randomly selected 14- to 18-year-old male is between $240 and $275.
Step-by-step explanation:
The Grocer used 7.5 pounds of each