Determine whether the random variable is discrete or continuous. In each case, state the possible values of the random variable.
(a) The number of
people with blood type Upper A in a random sample of 17 peoplepeople with blood type A in a random sample of 17 people.
(b) The
amount of rain in City Upper B during Aprilamount of rain in City B during April.
(a) Is the number of
people with blood type Upper A in a random sample of 17 peoplepeople with blood type A in a random sample of 17 people
discrete or continuous?
A.The random variable is discrete. The possible values are
0 less than or equals x less than or equals 170≤x≤17.
B.The random variable is continuous. The possible values are
xequals=0,
1,
2,...comma 17., 17.
C.The random variable is continuous. The possible values are
0 less than or equals x less than or equals 170≤x≤17.
D.The random variable is discrete. The possible values are
xequals=0,
1,
2,...comma 17., 17.
(b) Is the
amount of rain in City Upper B during Aprilamount of rain in City B during April
discrete or continuous?
A.The random variable is continuous. The possible values are
r greater than or equals 0r≥0.
B.The random variable is discrete. The possible values are
r greater than or equals 0r≥0.
C.The random variable is continuous. The possible values are
r equals 1 comma 2 comma 3 comma ...r=1, 2, 3, ....
D.The random variable is discrete. The possible values are
r equals 1 comma 2 comma 3 comma ...r=1, 2, 3, ....
a)
Discrete varaiable is that which is countable.
so, answer is
D.The random variable is discrete. The possible values are
xequals=0,1,2,...,17.
b)
A.The random variable is continuous. The possible values are
r greater than or equals 0r≥0.
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