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Nikitich [7]
2 years ago
10

As a general rule, the sampling distribution of the sample proportions can be approximated by a normal probability distribution

whenever
a)np greater than or equal to 5
b) n(1-p) greater than or equal to 5
c) n greater than or equal to 30
d) both a and b are true
A continuous random variable is uniformly distributed between a and b. The probability density function between a and b is
a) zero.
b) (a - b).
c) (b - a).
d) 1/(b - a).

A population has a mean of 84 and a standard deviation of 12. A sample of 36 observations will be taken. The probability that the sample mean will be between 80.54 and 88.9 is

a) 0.0347.
b) 0.7200.
c) 0.9511.
d) None of the alternative answers is correct.
Mathematics
2 answers:
OLga [1]2 years ago
7 0
C cause it’s the right answer
Alexxandr [17]2 years ago
7 0
C, I took this quiz
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3x-2y=-1. <br> Y=-x+3. <br> Is (1,2) a solution do the system?
andrew-mc [135]

Answer:

Yes

Step-by-step explanation:

To figure out if (1,2) is a solution to the system, we can plug the values in and see if it is true.

3x-2y=-1

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3-4=-1

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It is true for this equation. Now let's check the next one.

y=-x+3

2=-(1)+3

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Since both equations are true when we plug the values in, (1,2) is a solution to the system.

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