Answer:

Step-by-step explanation:
U can reduce this into

Which is a square.
Answer:
4/10
Step-by-step explanation:
there's 10 equal selections and there's 4 chances that the spinner will land on A. 4/10 = 0.4 on the probability scale
First, you find the rate at which Jeffery types.
110 divides by 2.75. This makes 40.
Then to find the amount of words he types in 4.25 minutes,
40 x 4.25. This makes 170.
So Jeffery can type 170 words in 4 1/4 minutes.
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Answer:
Step-by-step explanation:
Let X be the no of adults whose feelings the state of morals is poor.
X has two outcomes and each trial is independent of the other
X is Bin with p = probability for success in each trial =40%=0.40
n=no of adults surveyed = 55
a) The probability that exactly 21 of those surveyed feel the state of morals is poor is

(b) The probability that no more than 22 of those surveyed feel that state of morals is poor is
=
(c) The probability that more than22 of those surveyed feel the state of morals is poor is

(d) The probability that 15 or 16 believe the state of morals is poor is
=