Answer: 0.9147
Step-by-step explanation:
Given: 20% of the plants ordered are petunias.
Let p = 20% = 0.2
Sample size: n = 120
If they follow normal distribution, then mean = np = 120x 0.2 = 24
Standard deviation =
The probability that no more than 30 plants are petunias :
Hence, the probability that no more than 30 plants are petunias = 0.9147
Answer:
Step-by-step explanation:
Let us translate it step by step:
m reduced by 3 is subtracting from m, therefore: m - 3
Then the quotient of that and 5 is the division or fractions of m-3 over 5:
That is the expression for the quotient of the quantity m reduced by 3 and 5.
Answer:
Step-by-step explanation:
Given that X, the hip width of men is N(14.2, 0.9)
i.e. we have is N(0,1)
Seat width an airline uses = 16.7 inches.
a) the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.7 in
b) Here sample size = 126
Each person is independent of the other
the probability that these men have a mean hip breadth greater than 16.7
= <0.00001
c) part a is important since even a single person not fitting will cause embarassment and leads to customer dissatisfaction.
Divide the pages read by the portion read:
60/ 3/4 = 60 x 4/3 = 240/3 = 80
The book has 80 pages.
T = 2 and t=0
i hope this helped. if i did it wrong i apologize.