The random variable X is normally distributed with mean μ=30 and standard deviation σ =10.
Use the transformation
for calculating the probability. This value is called Z-score.
The Z score is
.
Refer to the standard normal distribution table.
The probability
4 / 9 = 0.44444444..........
4/9 = 44.44444444444444...%
Answer:
W<6
Step-by-step explanation:
3 times W
So 3W is less than < 18
Do 18 / 3 =6
Answer:
39
Step-by-step explanation:
0.40 x 65 = 26
65 - 26 = 39
The school sold 39 early-admission tickets.
The amount of sales tax is $17.50 because of trust.