MULTIPLE CHOICE Choose the one alternative that best completes the statement or

Question

MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question. Identify the given random variable as being discrete or continuous 1) The cost of a randomly selected orange A) 2) The pH level in a shampoo A) Continuous B) Discrete 3) The height of a randomly selected student A) Continuous 8) Discrete 4) The number of field goals kicked in a football game A) Continuous B) Discrete Find the mean of the given probability distribution 5) x P(x) 10.11 2 | 0.16 3 0.05 4 042 A)-2.42 B)p.252 C) 2.16 ) -226 6) The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's Real office. Its probability distribution is as follows Dab ds Houses Sold (x) Probability P(x) 0.01 0.12 0.16 0.01 0.14 0.11 0.21 B) . 3.50 C) 3.50 D) -335 A) 3.40 Provide an appropriate response. Round to the nearest hundredth. 7) Find the standard deviation for the given probability distribution. 1 0.13 2 0.06 3 0.15 4 0.29 A) ·290 B)·2.52 = 1.70 D) . 1.81

Explanation / Answer

1)

Cost of a orange is uncountable. Means it can take any value. So it is a continous variable.

2)

The pH level in a shampoo can take any value. So it is a continous variable.

3)

The height can take any value like 63.2, 67.4 etc. So it is a continous variable.

4)

Number of fields goals kick are countable. So it is a discrete variable.

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