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7 April, 09:20

All freshmen, sophomores, juniors, and seniors attended a

high school assembly. The total student attendance is

shown in the table.

Twice during the assembly, a student is chosen at random

to assist with the presentation. After the first student has

finished assisting, the student returns to the group and can

be chosen a second time. What is the probability that the

first student chosen is a senior and the second student

chosen is a sophomore?

Class

Number of

People

31

freshmen

sophomores

Juniors

seniors

10

17

22

+3
Answers (2)
  1. 7 April, 09:29
    0
    11/320

    Step-by-step explanation:

    On edge 100% correct
  2. 7 April, 09:42
    0
    The probability is. 034375 or 11/320

    Step-by-step explanation:

    the probability of a senior being chose first is 22 (seniors) divided my total number of students (80) is. 275 percent.

    multiplied by the probability of a sophomore being chosen 10/80 which equals. 125.

    multiply those together and you get your probability. 0.034375 or 11/320
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