The area of the postcard is 24 square inches. What is the width b of the message (in inches)?

Answer:

Confidence limit = [52.8%, 75.2%]

Step-by-step explanation:

±

where the value will be sourced from the z-table regarding a 95% confidence interval

1-0.95= 0.05/2= 0.025

0.95+0.025= 0.0975

From the z-table, the value of linked to 0.0975 is 1.96

±

±

±

% ± %

thus, the confidence interval is

%

%

Answer:

0.2 = 20%

Step-by-step explanation:

The combinations that yield a total of 6 or lower include:

(1,1), (1,2), (1,3), (1,4), (1,5),

(2,1), (2,2), (2,3), (2,4),

(3,1), (3,2), (3,3),

(4,1), (4,2),

(5,1)

(15 combinations in total)

The combinations resulting in a total of 4 are:

(1,3), (2,2), (3,1)

(3 combinations in total)

Thus, the probability of obtaining a sum of 4, given that the total is 6 or less is:

P = 3/15 = 0.2 = 20%