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
Answer:
y=2
Step-by-step explanation:
x+y=8
6+y=8
6+2=8
so y=2
Answer:
-37
Step-by-step explanation:
f(9)= -6X9-1
= -36-1
= -37
Answer: 875.25
How I got my answer: 800-206.75+82+200= 875.25
Step-by-step explanation:
190 long sleeve and 330 short sleeve
