Question

asked 2021-02-01

There is a binomial distribution with n = 6 trials, and a probability of success of p = 0.10. Find the probability that the number of successes x is exactly 2.
P(x = 2) =…

asked 2020-12-25

If n=5 and p=0.40, what is the binomial probability that X < 3?

asked 2020-11-07

A binomial probability is given: P(x <= 64)
Find the answer that corresponds to the binomial probability statement.
a) P(63.5< x < 64.5)
b) P(x > 63.5)
c) P(x < 63.5)
d) P(x > 64.5)
e) P(x < 64.5)

asked 2021-02-02

A binomial probability is given: P(x <= 124)
Find the answer that corresponds to the binomial probability statement.
a) P(x > 123.5)
b) P(x < 123.5)
c) P(x < 124.5)
d) P(x > 124.5)
e) P(123.5 < x < 124.5)

asked 2021-03-07

M. F. Driscoll and N. A. Weiss discussed the modeling and solution of problems concerning motel reservation networks in “An Application of Queuing Theory to Reservation Networks” (TIMS, Vol. 22, No. 5, pp. 540–546). They defined a Type 1 call to be a call from a motel’s computer terminal to the national reservation center. For a certain motel, the number, X, of Type 1 calls per hour has a Poisson distribution with parameter \(\displaystyle\lambda={1.7}\).

Determine the probability that the number of Type 1 calls made from this motel during a period of 1 hour will be:

a) exactly one.

b) at most two.

c) at least two.

(Hint: Use the complementation rule.)

d. Find and interpret the mean of the random variable X.

e. Determine the standard deviation of X.

Determine the probability that the number of Type 1 calls made from this motel during a period of 1 hour will be:

a) exactly one.

b) at most two.

c) at least two.

(Hint: Use the complementation rule.)

d. Find and interpret the mean of the random variable X.

e. Determine the standard deviation of X.

asked 2021-02-05

1) State the formula for the Binomial Probability Distribution, also state the domain.
2) Tell what the requirement for the Binomial experiment are.
3) List both formulas for calculating the mean of a Binomial Probability Distribution.
4) List the formulas for the standard deviation of a Binomial Probability Distribution.

asked 2020-10-21

Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an LG Smartphone survey). If 8 adult smartphone users are randomly selected, find the probability that exactly 6 of them use their smartphones in meetings or classes.

asked 2020-11-22

If x is a binomial random variable, find the probabilities below by using the binomial probability table.
a) P(x < 11) for n = 15, p = 0.1
b) P(x >= 11) for n = 25, p = 0.4
c) P(x = 2) for n = 20, p = 0.6

asked 2021-03-06

When dealing with the binomial distribution, why are the possible values for the random variable always 0,1,2,3,…,n where n is the number of trials or sample size? Why can't we use negative values, or fractions, or numbers greater than n?

asked 2021-01-23

Please, find the binomial probability when n = 6, p = 0.83, x = 5.