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%
Answer:36
Step-by-step explanation: first I did
9÷5=1.80 per box.
so then I did 1.80 x 20 which = 36
Answer:
you can refresh the page or close brainly and open it again but that's all I got
Step-by-step explanation:
Answer:
It is impossible for a number to be both less than 1 and greater than or equal to 3, so the compound inequality has NO SOLUTION.
Step-by-step explanation:
The word "and" tells us that we are looking for all values of x that satisfy BOTH inequalities simultaneously.
3x + 5 < 8 and 2x + 5 ≥ 11
3x < 3 and 2x ≥ 6
x < 1 and x ≥ 3
It is impossible for a number to be both less than 1 and greater than or equal to 3, so the compound inequality has NO SOLUTION.