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ipn [44]
2 years ago
7

About 35% of all U.S. households have a cellular phone. If you called 7 households what's the probability that, a. All 7 househo

lds have a cellular phone? a= b. Exactly 4 households have a cellular phone? b = c. Fewer than 2 households have a cell phone? c = d. At least 6 households have a cellular phone? d = e. At least 1 household has a cellular phone? e =
Mathematics
2 answers:
Mandarinka [93]2 years ago
4 0

Answer:

p = 0.35

q = 0.65

n = 7

Step-by-step explanation:

To calculate the distribution, we have the following values;

p = 35% = 35/100 = 0.35

q = 1-p = 1-0.35 = 0.65

n = 7

Tanya [424]2 years ago
4 0

A substantial majority of Americans are cellphone owners across a wide range of demographic groups. By contrast, smartphone ownership exhibits greater variation based on age, household income and educational attainment. Source: Survey conducted Jan. 8 to Feb. 7, 2019. Along with mobile phones, Americans own a range of other information devices.

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