A frequency distribution for the class level of students in an introductory statistics course is shown. Two students are randomly selected without replacement. Complete parts (a) through (d). Class: Frequency: Freshman 6, Sophomore 15, Junior 12, Senior 7 a. Determine the probability that the first student obtained is a junior and the second a senior. The probability that the first student obtained is a junior and the second a senior is enter your response here. (Type an integer or a decimal rounded to three decimal places
A frequency distribution for the class level of students in an introductory statistics course is shown. Two students are randomly selected without replacement. Complete parts (a) through (d). Class: Frequency: Freshman 6, Sophomore 15, Junior 12, Senior 7 a. Determine the
According to the given information,
Number of Freshman, n(Freshman) = 6
Number of Sophomore, n(Sophomore) = 15
Number of Junior, n(Junior) = 12
Number of Senior, n(Senior) = 7
So, total = n(Freshman)+ n(Sophomore) +n(Junior)+ n(Senior)
= 6+15+12+7
= 40
Using formula,
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