Consider the following discrete probability
distribution.
x | 15 | 22 | 34 | 40 |
P(X = x) | 0.13 | 0.49 | 0.24 | 0.14 |
a. Is this a valid probability distribution?
Yes, because the probabilities add up to 1.
No, because the gaps between x values vary.
b. What is the probability that the random
variable X is less than 38? (Round your answer to
2 decimal places.)
c. What is the probability that the random
variable X is between 10 and 28? (Round your
answer to 2 decimal places.)
d. What is the probability that the random
variable X is greater than 20? (Round your answer
to 2 decimal places.)
Consider the following discrete probability distribution. x 15 22 34 40 P(X = x) 0.13 0.49...
Consider the following discrete probability distribution 15 22 P(X x) 0.14 0.38 0.27 0.21 xc 34 40 a. Is this a valid probability distribution? O Yes, because the probabilities add up to 1. O No, because the gaps between x values vary. b. What is the probability that the random variable X is less than 36? (Round your answer to 2 decimal places.) Probability c. What is the probability that the random variable X is between 12 and 30? (Round...
Consider the following discrete probability distribution. 15 34 40 Pix-x) 0.15 0.33 0.29 0.23 a. Is this a valid probability distribution? Yes, because the probabilities add up to 1. ONo, because the gaps between x values vary b. What is the probability that the random variable X is less than 38? (Round your answer to 2 decimal places c. What is the probability that the random variable X is between 10 and 25? (Round your answer to 2 decimal places.)...
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Is the following a discrete probability distribution? X P(x) 40 0.12 66 0.29 2 0.16 38 0.14 57 0.03 34 0.08
Which of the following is/are required for the probability distribution of a discrete random variable X with probabilities P(X= x), to be valid? I. PX x) is between 0 and 1 for all values of x. 2aPXx) ii. all x i, all x2 0 Il and Ill only Il only I and Il only I, II, and III only
In the following probability distribution, the random variable x represents the number of activities a parent of a 6 th- to 8th-grade student is involved in. Complete parts (a) through (f) below.x01234P(x)0.3670.1330.2090.1160.175(a) Verify that this is a discrete probability distribution.This is a discrete probability distribution because the sum of the probabilities is _______ and each probability is _______ (b) Graph the discrete probability distribution. Choose the correct graph below.(c) Compute and interpret the mean of the random variable x .The mean...
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. Assignment of probability p, to each value of the Continuous Random Variable x. B. Assignment of frequency f, to each value of the Discrete Random Variable x. C. Assignment of probability p, to each value of the Discrete Random Variable x. D. Assignment of frequency f, to each value of the Continuous Random Variable x. Given the discrete probability distribution in the table below, answer questions 12-15 23 4 Po)10.12a a-0.11 0.28 12. Calculate a A. 0.46 B. 0.33...
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2. 20 greater tildll 20! Consider the following discrete probability distribution. -25 -15 10 20 PIX=x) 0.35 0.10 0.10 a. Complete the probability distribution. b. Graphically depict the probability distribution and comment on the symmetry of the distribution. C. What is the probability that the random variable X is negative? d. What is the probability that the random variable X is greater than -20? e. What is the probability that the random variable X is less than 20?