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According to one poll, 48% of households in a certain region still had landline phone service. Suppose a random sample of 55 households from the region is taken. Complete parts (a) through (d) below. a. Find the probability that exactly 23 of the households sampled still have a landline. The probability that exactly 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) b. Find the probability that more than 23 households still have a landline. The probability that more than 23 still have a landline is (Type an integer or a decimal. Round to three decimal places as needed.) c. Find the probability that at least 23 households still have a landline. The probability that at least 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) d. Find the probability that between 20 and 23 households, inclusive, still have a landline. The probability that between 20 and 23 households, inclusive, still have a landline is ☐ . (Type an integer or a decimal. Round to three decimal places as needed.)

According to one poll, 48% of households in a certain region still had landline phone service. Suppose a random sample of 55 households from the region is taken. Complete parts (a) through (d) below. a. Find the probability that exactly 23 of the households sampled still have a landline. The probability that exactly 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) b. Find the probability that more than 23 households still have a landline. The probability that more than 23 still have a landline is (Type an integer or a decimal. Round to three decimal places as needed.) c. Find the probability that at least 23 households still have a landline. The probability that at least 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) d. Find the probability that between 20 and 23 households, inclusive, still have a landline. The probability that between 20 and 23 households, inclusive, still have a landline is ☐ . (Type an integer or a decimal. Round to three decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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Part a through d please. Thank you!
According to one poll, 48% of households in a certain region still had landline phone service. Suppose a random sample of 55 households from the region is taken. Complete parts (a) through (d) below. a. Find the probability that exactly 23 of the households sampled still have a landline. The probability that exactly 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) b. Find the probability that more than 23 households still have a landline. The probability that more than 23 still have a landline is (Type an integer or a decimal. Round to three decimal places as needed.) c. Find the probability that at least 23 households still have a landline. The probability that at least 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) d. Find the probability that between 20 and 23 households, inclusive, still have a landline. The probability that between 20 and 23 households, inclusive, still have a landline is ☐ . (Type an integer or a decimal. Round to three decimal places as needed.)
Transcribed Image Text:According to one poll, 48% of households in a certain region still had landline phone service. Suppose a random sample of 55 households from the region is taken. Complete parts (a) through (d) below. a. Find the probability that exactly 23 of the households sampled still have a landline. The probability that exactly 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) b. Find the probability that more than 23 households still have a landline. The probability that more than 23 still have a landline is (Type an integer or a decimal. Round to three decimal places as needed.) c. Find the probability that at least 23 households still have a landline. The probability that at least 23 still have a landline is ☐ (Type an integer or a decimal. Round to three decimal places as needed.) d. Find the probability that between 20 and 23 households, inclusive, still have a landline. The probability that between 20 and 23 households, inclusive, still have a landline is ☐ . (Type an integer or a decimal. Round to three decimal places as needed.)
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