For which of the following is the shape of the sampling distribution of the sample mean approximately normal? a random sample of
1 answer:
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Answer:
Step-by-step explanation:
There is a point V with ration 6 to 2, therefore we must find the coordinates of point V and the distance from A to V
<u>According to the graph</u>
α≅27°
V=2*8.94/6 (ratio 6:2)
V=2.98mile
coordinates of V = (2,65;1.35)
Distance from A to V
finally
Mary's mistake is to take the 6 to 2 ratio as the distance traveled from the globe only in the x direction
Answer:
(a) 2.22
(b) 1.3986
(c) 1.183
Step-by-step explanation:
Let <em>X</em> denote the number of women who consider themselves fans of professional baseball.
The proportion of women who consider themselves fans of professional baseball is, <em>p</em> = 0.37.
A random sample of <em>n</em> = 6 women are selected and each was asked if she considers herself a fan of professional baseball.
Each woman's reply is independent of the others.
The random variable <em>X</em> thus follows a binomial distribution with parameters <em>n</em> = 6 and <em>p</em> = 0.37.
(a)
Compute the mean of the binomial distribution as follows:
(b)
Compute the variance of the binomial distribution as follows:
(c)
Compute the standard deviation of the binomial distribution as follows: