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FinnZ [79.3K]
3 years ago
15

Sarah predicts that 15 percent of all the birds she spots while bird watching will be robins. At the end of the day, she records

that 10 out of the 25 birds she spotted were robins. How does Sarah’s prediction compare with the actual results?
Mathematics
2 answers:
deff fn [24]3 years ago
8 0
Sarah's prediction prediction less than what was reality, she predicted it would be 15% robins, but it was actually 40. You know this because 10/24=.4 and .4 means 40%.
8_murik_8 [283]3 years ago
4 0
Apply hypothesis testing
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Answer the question below. Be sure to show your work
likoan [24]

ANSWER:

We have to find new side-lengths of PQR triangle.

Original sides are.

\begin{gathered} PQ\text{ = 8cm} \\ QR=17\operatorname{cm} \\ RP=15\operatorname{cm} \end{gathered}

After multiplying by 2.5 we get

\begin{gathered} PQ^{\prime}=2.5\times PQ=(8\times2.5)cm=20\operatorname{cm} \\ QR^{\prime}=(17\times2.5)cm=42.5\operatorname{cm} \\ RP^{\prime}=(15\times2.5)cm=37.5\operatorname{cm} \end{gathered}

These are the new sides of the P'Q'R' triangle.

5 0
1 year ago
Why do we call a decimal a decimal
olga2289 [7]
Well we call that a decimal which looks like this:   .
A decimal point is to separate or decrease a number by a certain value.
Hope this helped!   :)
6 0
3 years ago
Please help
Ann [662]

Answer:

1/60 probabiliity

Step-by-step explanation:

You have two independent events that you want to put together.

Let Pr. mean "probability"

Pr(5 from 10 cards and 2 on a dice ) = Pr(5 from 10 cards) * Pr( 2 on a dice)

Pr(5 from 10 cards and 2 on a dice ) =(1/10) * (1/6)

= 1/60

Pr(5 from 10 cards and 2 on a dice ) =0.0167

or 1.67% probability

5 0
3 years ago
Solve 6x+89(9)^2<br> 3(2x+2403)<br> 3(2x+234)<br> 6x+7209<br> which one would it be
iogann1982 [59]

Answer:

It would be the last one 6x+7209

Step-by-step explanation:

because it will be simplify not factor by

6 0
3 years ago
Read 2 more answers
1/2(-10x+4)= -4(-3+2x)+8
bezimeni [28]

Answer:

6 is the answer

Step-by-step explanation:

8 0
3 years ago
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