The Distribution Pictured Below Is

11 ) When considering surface area under the standard normal bend, decide whether the surface area between z = - 0.2 and z = 0.2 is bigger than, smaller than, or equal to the area betwixt z = - 0.3 and z = 0.3.

A) smaller than B) bigger than C) equal to

12 ) For the compatible distribution pictured below, the probability P (ii ≤ x ≤ 2.five) equals

A) ane/6. B) 1. C) i.3. D) none of these

13 ) For the uniform distribution pictured below, the probability P ( x = 2) equals

A) 0. B) 1/3. C) 2/3. D) none of these

14 ) For the compatible distribution pictured below, the probability P ( x ≤ 2.5) equals

A) 5/six. B) 1. C) ane/3. D) none of these

15 ) The area to the right of z = 1.0 is equal to

A) 0.3413. B) 0.8413. C) 0.6816. D) 0.1587.

16 ) To determine the probability of obtaining exactly 20 successes in l trials with p = 0.30, we should use

A) the binomial formula. B) the Poisson formula.

C) the normal approximation to the binomial distribution. D) the normal table.

17 ) The probability of obtaining exactly xx successes in fifty trials

A) is equal to 0.

B) can be approximated by using the normal table with x between nineteen.5 a nd 20.5. C) can only exist approximated past the binomial formula.

D) cannot exist establish using the normal tabular array.

18 ) The problem that is solved by using the standard formula table and the formula μ = np

A) involves Table V.

B) involves the normal approximation to the binomial distribution. C) originally involved the normal approximation.

D) originally involved the Poisson distribution.

19 ) In a binomial distribution with x trials, which of the following is truthful?

A) P (3 ≤ x ≤ five) = P (3 < 10 < 5) B) P ( ten < four) = P ( ten ≥ 5) - P ( ten ≥ 4) C) P ( x < 6) = 1 - P ( ten ≥ seven) D) P ( 10 > 7) = P ( x ≥ 8)