Y=-2/1x ivigvyvitvtuyvsybsubeeuwub
Answer:
0.8041
Step-by-step explanation:
We know that
μ=72 and σ=5
and P(65<X<78)
We can determine the Z value as (X-μ)/σ
P( 65<X<78 )=P( 65-72< X-μ<78-72)


To fine the Z values:

From the standard normal tables:

to find P ( Z<-1.4)

From the standard normal tables:

Therefore


Answer:
Step-by-step explanation:
1) 2
2) 3
3) 4
4) 7
Hope this helps ^-^
Answer:
1 - 7
2 - 5
3- 27.5
Step-by-step explanation: