Answer:
95
Step-by-step explanation:
If the mean is 400 and the standard deviation 12.5. It means that a range between 375 and 425 is the mean +- 2 standard deviations
400 - 12.5*2 = 375
400 + 12.5*2 = 425
Which means the probability is 95%
When you are looking for +- 1 deviation standard the probability is 68, and for +- 3 the probability is 99.7
There is a more complex explanation based on Z, but assuming you are only applying 68-95-99.7 rule this should be enough.
58:
There are 26 letters in the alphabet and 5 of them are not consonants of the probability of not getting a consonant is 5/26
Times this by 300 to get 57.69 that rounds to 58 times a non consonant will be picked in 300 picks
Answer:x-5
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Base area = (base x height of the base)/2 = (13 x 6)/2 = 39 ft^2
V = base area x height = 39 x 5 = 195 ft^3
Answer:
Dividing the number by 1000
Explanation:
10,000 moved 3 decimal places to the left is 10
10,000 decided by 1,000 is 10
