Can the following table be a probability distribution? P(x) 1 0.1394 2 0.1302 3 0.3472 4 0.1745 0.2087 no yes

Given the following probability distribution, Find P(x32) 1 2. 3. 4. P(x=x) 0.2 0.05 0.2 0.25 P(x32)%3= Next ► -Previous

Which of the following is a true(legitimate) probability distribution? OX PIX) -1 25 30 1 15 .10 3 25 OX P(X) .25 1.25 .25 25 OX P(X) -1 .25 .30 1 .15 .10 20 P(X) 7. .10 8. -.10 6. .95 10 .05 X1234

In a survey of 2825 adults, 1418 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the reaılts. ... A 99% confidence interval for the population proportion is (Round to three decimal places as needed.)

Find the value of the following hypergeometric probability distribution. Leave the answer as a number rounded to the nearest ten-thousandths: ?(3)=(93)⋅(81)(174)f(3)=(93)⋅(81)(174) Remember, just give me the number rounded to the nearest ten-thousandths.

None

Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15   Is this model a probability distribution? A. Yes. B. No. C. Maybe.

Let x be the number of courses for which randomly selected student at a university is registered. The probability distribution of x appears in the following table. ( all students must be enrolled in between 1 and 7 classes )   x.                     1                2             3            4        5           6               7   P (x)            ( 0.02 )      ( 0.04 )   (0.09 )   (0.24)  ( 0.39 )  ( 0.17 )    ( .05 )     a. Find mean (x)  ( round to two decimal places )   B. Find standard deviation of x ( round to two decimal places )    c. What is the probability that x is within 1 standard deviation of the mean?  In other words solve: p ( mean of x - standard deviation of x < x < mean of x + standard deviation of x )=

Consider the following probability distribution. Find the probability that x=2. x.           0              1               2             3            4              5   p(x).       .12         .25              ?            .18        .14           .11

Calculate the probability of 3 or 4 based on the following probability distribution. 1 4 p(x) 0.2 0.1 0.3 0.8 O0.6 O 0.7 er