Each morning papa notes the birds feeding on his birdfeeder. So far this month he has seen 59 blue jays, 68 black crows, 12 red robins and 1

Question

Each morning papa notes the birds feeding on his birdfeeder. So far this month he has seen 59 blue jays, 68 black crows, 12 red robins and 1 cardinal

if 300 birds visit papa’s birdfeeder, how many blue jays do we expect to see

A. 140
B. 177
C. 75
D. 126

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Thu Hương 5 years 2021-08-24T09:10:26+00:00 2 Answers 49 views 0

Answers ( )

  1. kimcuc
    0
    2021-08-24T09:11:34+00:00
    Reply

    59+68+12+1=140

    Probability of getting blue jays is : 59/140

    Therefore, on 300 birds, you would get 126,43 blue jays, but you can’t have a half bird, so 126 is the answer.

  2. Vodka
    0
    2021-08-24T09:11:56+00:00
    Reply

    Answer:

    D

    Step-by-step explanation:

    add all together = 140

    make a proportion

    59/140=x/300

    cross multiply

    140x=17700

    126.4285

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