QUESTION: 889

Which is true for a binomial distribution?

All of these answers are correct
Value of p is equal to 1.50
Probability of success remains the same from trial to trial
There are three or more possible outcomes
None of these answers are correct

Answer(s): C

Explanation:

The probability of success is a constant in a binomial distribution.

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QUESTION: 890

What annual interest rate, compounded annually, will cause an original deposit of $400 to grow to $625, after 7 years?

8.57%
6.58%
7.27%
6.14%
5.78%

Answer(s): B

Explanation:

On the BAII Plus, press 7 N, 400 PV, 0 PMT, 625 +/- FV, then CPT I/Y. On the HP12C, press 7 n, 400 PV, 0 PMT, 625 CHS FV, then press i. Make sure the BAII Plus has the P/Y value set to 1.

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QUESTION: 891

Given the following points: (-2, 0), (-1,0), (0,1), (1, 1) and (2, 3) What is the critical value necessary to determine a confidence interval for a 95% level of confidence?

2.776
None of these answers
3.182
2.132
2.353

Answer(s): C

Explanation:

Look at the t tables for n-2 degrees of freedom at the 5% level. Here, we look for a two tailed test with 5-2 = 3 degrees of freedom. This is 3.182.

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The net incomes of a sample of importers were organized into the following table:

Net Income (in $ millions) Number of Importers
2 - 41
5 - 74
8 - 1010
11 - 133
14 - 162

What is the mean net income?

None of these answers
$7.65 million
$14.2 million
$9.15 million
$9.00 million

Answer(s): D

Explanation:

(3*1)+(6*4)+(9*10)+(12*3)+(15*2) = 183. Mean is 183/20 = 9.15

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QUESTION: 889

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QUESTION: 890

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QUESTION: 891

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QUESTION: 892

Explanation:

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