Answer:
The correct answer is 7.5
Step-by-step explanation:
100x5=500
500÷4=125
125x6=750
750/100=7.5
The answer is 7.5 m
Step-by-step explanation:
Answers
= 80 square feet
Answer:
0.2839 = 28.93%
Step-by-step explanation:
In order to find find the probability that one car chosen at random will have less than 68.5 tons of coal, we have to find z
Le x be tons of coal in a car
Z = (x – mean)/standard deviation
Z = (x – μ)/ σ
P (x<68.5) = P(z < (68.5-69)/0.9)
P (x<68.5) = P(z < -0.5555)
Then we use the z table to find the area under the curve.
P (x<68.5) = 0.2893