Answer:
15 divided by 3 = 5
Step-by-step explanation:
21 divided by 3 = 7
6 divided by 3 = 2
Have a Good Day : )
Answer:
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Step-by-step explanation:
This question is incomplete, the complete question is;
In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random,
find the mean and variance for the number of voters who support the referendum.
Answer:
a) The Mean is 22
b) Variance is 9.9
Step-by-step explanation:
Given that;
55% of the voters support a particular referendum p = 0.55
q = 1 - p = 1 - 0.55 = 0.45
sample size n = 40
a)
Mean = sample size n × p
Mean = 40 × 0.55
Mean = 22
Therefore the Mean is 22
b)
Variance = n × p × q
so we substitute
Variance = 40 × 0.55 × 0.45
Variance = 9.9
Therefore the Variance is 9.9
Answer:
0.4 = 40% probability that a toy that Raymond picks out of a box is plush given that it is a dinosaur.
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is

In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Dinosaur
Event B: Plush.
The probability that a toy Raymond picks out of a box is a dinosaur is 75%.
This means that 
The probability that a toy Raymond picks out of a box is both plush and a dinosaur is 30%.
This means that 
What is the probability that a toy that Raymond picks out of a box is plush given that it is a dinosaur?

0.4 = 40% probability that a toy that Raymond picks out of a box is plush given that it is a dinosaur.
Answer:
huh ano yan huhu paki ayos ng sagot
Step-by-step explanation:
hahahhaa