Purchase Solution

Find the probabilities, construct a distribution, and classify

Not what you're looking for?

Ask Custom Question

See attached file.

1. Find the following probabilities:

(A) Events A and B are mutually exclusive events defined on a common sample space. If P (A) = 0.3 and P(A or B) = 0.40, find P(B).
(B) Events A and B are defined on a common sample space. If P(A) = 0.50, P(B) = 0.50, and P(A or B) = 0.60, find P(A and B)

2. A bag of jelly belly candies contains the following colored jelly beans: red (6), blue (2), orange (5), brown (21), green (10), and yellow (6). Construct the probability distribution for x.

3. Find the mean and standard deviation of the following probability distribution:

x 1 2 3
P(x) 0.2 0.6 0.2

4. Classify the following as discrete or continuous random variables.

(A) The weight of a school bus containing 22 football players
(B) The number of times required for a modem to dial an internet provider before connecting
(C) A pair of dice is rolled, and the sum to appear on the dice is recorded
(D) The blades of grass on a front lawn

5. In testing a new drug, researchers found that 5% of all patients using it will have a mild side effect. A random sample of 15 patients using the drug is selected. Find the probability that:

(A) exactly three will have this mild side effect
(B) at least two will have this mild side effect.

6. X has a normal distribution with a mean of 75.0 and a standard deviation of 3.5. Find the following probabilities:

(A) P(x < 73.0)
(B) P(72.0 < x < 78.0)
(C) P(x>79.0)

Purchase this Solution

Purchase this Solution

Free BrainMass Quizzes
Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.