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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