Answer:
£60
Step-by-step explanation:
3+2 = 5
£100/5 = £20
£20 x 3 = £60
Answer:
24
Step-by-step explanation:
Answer:
Y(3)-Y(2)+Y-1 the explanation is to long
Step-by-step explanation:
Area=9π
r=3
Circumference=6πcm
The normal distribution curve for the problem is shown below
We need to standardise the value X=405.5 by using the formula
We now need to find the probability of z=0.32 by reading the z-table
Note that z-table would give the reading to the left of z-score, so if your aim is to work out the area to the right of a z-score, then you'd need to do:
from the z-table, the reading
gives 0.6255
hence,
The probability that the mean weight for a sample of 40 trout exceeds 405.5 gram is 0.3475 = 34.75%