I think it's 20. Sorry if it's wrong
Answer:
mount whitney..............
Divide 3 on both sides
x=3.33
The answer is 19
arrange the numbers from least to greatest
2,5,19,25,28
Then repeatedly cross one off from each end until there is only one left
5,19,25
19
The probability that student scored more than 850 we shall proceed as follows:
z=(x-μ)/σ
where:
x=850
μ=750
σ=50
thus
z=(850-750)/50
z=2
thus
P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228
Answer: P(x>850)=0.0228
