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March 28, 2017

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In a group of 24 people 6 are under age 12. 5 are from ages 12 to 19 and 13 are over age 19. If you randomly selected 1 of the group members to sit next to what is the probability hat he will be under 12?
A.1 in 24
B.1 in 12
C.1 in 7
D.1 in 4
D?

Kathleen has a box with 20 spools of thread in it. The spools are all the same size. 4 spools have red thread. 5 spools have green thread. 2 spools have black thread. and 3 have white thread. 6 spools are wound with blue thread. if kathleen randomly chooses a spool of thread out of the box what is the probability that the thread will be green?
A.1in3
B.1in4
C.1in5
D.1in10
B?

  • Math - ,

    Both are right.

  • Math - ,

    There are 21 sixth grade teachers at Noconas school. Nocona especially likes 3 of them. When a computer randomly selects Noconas sixth grade teacher what is the probability that the teacher will be one Nocona especially likes?
    A.1in2
    B.1in3
    C.1in5
    D.1in7
    D?

    Terry likes to bowl. Of the past 30 throws Terry has made a strike 6 times. If this pattern continues what is the probability that terry will score a strike the nxet time she throws the bowling ball?
    a/1in30
    B.1in15
    C.1in6
    D.1in5
    D?

  • Math - ,

    Right.

  • Math - ,

    thank you

  • Math - ,

    You're welcome.

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