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Fed [463]
3 years ago
12

If np >5 and nq >5, estimate P (fewer than 5) with n=13 and p= 0.6 by using the normal distribution as an approximation to

the binomial distribution, if np <5 or nq <5m then state that the normal approximation is not suitable.
P(fewer than 5) =
Mathematics
1 answer:
bogdanovich [222]3 years ago
5 0
Sorry i cant exactly help you with this one because im in 6th grade so i dont really know problems like this yet.
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4 0
4 years ago
Work out the value of (2^3)^2​
aniked [119]

Answer:

2^6

64

Step-by-step explanation:

7 0
3 years ago
It was reported that 23% of U.S. adult cellphone owners called a friend for advice about a purchase while in a store. If a sampl
leva [86]

Answer:

P(X=7)

And using the probability mass function we got:

P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271  

Step-by-step explanation:

Let X the random variable of interest, on this case we now that:  

X \sim Binom(n=15, p=0.23)  

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

And we want to find the following probability:

P(X=7)

And using the probability mass function we got:

P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271  

5 0
3 years ago
1.
belka [17]

1. D

2. D

I don't know the answer to number 3 sorry.

8 0
3 years ago
Read 2 more answers
I really need help. ​
fiasKO [112]
39/10 I’m not sure! Use the app called photo math
8 0
3 years ago
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