0.36 The histogram shows the distribution of stops for red traffic lights a commuter must pass...
the histogram shows the distribution of stops for red traffic lights a commuter must pass through on her work use the histogram to find the mean variance and standard deviation and expected value of the probability distribution
A commuter must pass through 5 traffic lights on her way to work and will have to stop at each one that is red. She estimates the probability model for the number of red lights she hits, as shown below. X=# of red 0 1 2 3 4 5 P(X=x) 0.03 0.24 0.36 0.15 0.14 0.08 (a) Compute the mean, or expected value, of the random variable X. muequals 2.4 (Round to one decimal place as needed.) (b) Compute the...
A commuter must pass through five traffic lights on her way to work, and she will have to stop at each one that is red. After years of commuting she has developed the following probability distribution for the number of red lights she stops at each day on her way to work: No. of red lights x 0 1 2 3 4 5 Probability .05 .25 .30 .20 .15 .05 Note that the standard deviation of the above probability distribution...
A commuter must pass through 5 traffic lights on her way to work and will have to stop at each one that is red. She estimates the probability model for the number of red lights she hits, as shown below. The mean number of lights she will hit is 2.22 X =# of red 0 1 2 3 4 5 PIX=x) 0.06 0.25 0 .35 0.14 0.15 0.05 Compute the standard deviation of the random variable X 0-0 (Round to...
A commuter must pass through five traffic lights on her way to work, and she will have to stop at each one that is red. After years of commuting she has developed the following probability distribution for the number of red lights she stops at each day on her way to work No. of red lights Probability o 1 2 3 4 5 OS 25 30 30.5 TOS Note that the standard deviation of the above probability distribution is SDX)...
A commuter must pass through five traffic lights on her way to work and will have to stop at each one that is red. She estimates the probability model for the number of red lights she hits (xx), as shown below: xx 0 1 2 3 4 5 p(x)p(x) 0.03 0.15 pp 0.11 0.1 0.07 Find the probability that she hits at most 3 red lights. Answer to 2 decimal places. Tries 0/5 Find the probability that she hits at...
he probability distribution of a random variable x is given. -196 -195 191 -189 -185 p(X = x) 0.20 0.25 0.15 0.10 0.30 Compute the mean, variance, and standard deviation of X. (Round your answers to two decimal places.) mean variance standard deviation
The probability distribution of a random variable X is given. -198 -195 -191 -188 -185 p(X x) 0.20 0.25 0.30 0.15 0.10 Compute the mean, variance, and standard deviation of X. (Round your answers to two decimal places.) mean variance standard deviation Need Help? Read it
The table below shows the one-year return distribution for RCS stocks. Possible Return Ri Probability pi -40% 0.10 -20% 0.20 0% 0.15 20% 0.25 40% 0.30 (a) The expected return is: %. (Round to two decimal places.) (b) The standard deviation is: %. (Round to two decimal places.)
Reviewer Ratings The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book (a) Find the mean, variance, and standard deviation of the probability distribution (b) Interpret the results Probability OOOOOO 0.214 0 248 0.022 0.072 Rating (a) The mean is (Type an integer or a decimal. Do not round.) The variance is (Round to two decimal places as needed.) The standard deviation is (Round to two decimal places as needed.)...