Answer:
Step-by-step explanation:
Given that the random variable X is normally distributed, with
mean = 50 and standard deviation = 7.
Then we have z= 
Using this and normal table we find that
a) 
b) When z=0.02
we get

c) 90th percentile z value =1.645
90th percentile of X 
Answer:
B
Step-by-step explanation:
It's the only one with an addition sign...... seems logical, let me know if you got it correct
Answer:
0.015
Step-by-step explanation:
0.15% = 0.0015
{transfer}
Answer:
See image below:)
Step-by-step explanation:
Answer:
tu aimes les hommes
Step-by-step explanation: