A sample of size n taken from a population with mean = µ and standard deviation = σ has sample mean = µ and sample s.d. = σ/√n.
If the final exam scores are normally distributed, and X is a random variable for the mean of a sample, then
Pr[X < 70] = Pr[(X - 73) / (7.8/√24) < (70 - 73) / (7.8/√24)]
… ≈ Pr[Z < -1.8842]
… ≈ 0.0298
(where Z is normally distributed with µ = 0 and σ = 1).
Answer:
No
Step-by-step explanation:
We have to solve the equation.
5x+1=6
-1 -1
5x=5
/5 /5
x=1
No, 3 isn't a solution.
-hope it helps
The answer is 3
hope this helps :)
Answer:
nothing
Step-by-step explanation:
nothing will come because there is no figure
Answer:
32x+8 and 4(8x+2)
Step-by-step explanation:
1. simplify the expression 4(8x+2) =32x+8