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Liono4ka [1.6K]
3 years ago
11

Which strategy best explains how to solve this problem?

Mathematics
1 answer:
Kitty [74]3 years ago
5 0
Answer C will be your best option here.
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James conducted an experiment with 4 possible outcomes. He determined that the experimental probability of event A happening is
Ganezh [65]

Answer:

Completing the experiment a few more times and combining the results to the trails already done.

8 0
3 years ago
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NOP has side lengths 5 cm, 7 cm, and 9 cm. If NOP - RST, which of the following could
Iteru [2.4K]

Answer:

b its b

Step-by-step explanation:

bbbbb

3 0
2 years ago
A genetic experiment involving peas yielded one sample of offspring consisting of 409 green peas and 171 yellow peas. Use a 0.05
grigory [225]
The usual expectation for this kind of experiment is that the peas would yield green and yellow peas in a 3:1 ratio, or 75% green to 25% yellow. So your null hypothesis is that the proportion of yellow peas is p=0.25.

You're testing the claim that 26% of the offspring will be yellow, which means the alternative hypothesis is that the proportion of yellow peas is actually 0.26, or more generally that the expected proportion is greater than 0.25, or p>0.25.

The test statistic in this case will be

Z=\dfrac{\hat p-p_0}{\sqrt{\dfrac{p_0(1-p_0)}n}}

where p_0 is the proportion assumed under the null hypothesis, \hat p is the measured proportion, and n is the sample size. You have p_0=0.25, \hat p=\dfrac{171}{171+409}\approx0.29, and n=409+171=580, so the test statistic is

Z=\dfrac{0.29-0.25}{\sqrt{\dfrac{0.25\times0.75}{580}}}\approx2.2247

Because you're testing p>p_0, this is a right-tailed test, so the P-value is

\mathbb P(Z>2.2247)\approx0.0131

The critical value for a right-tail test at a 0.05 significance level is Z_\alpha\approx1.6449, which means the rejection region is any test statistic that is larger than this critical value. Since Z>Z_\alpha in this case, we reject the null hypothesis.

So the conclusion for this test is that the sample proportion is indeed statistically significantly different from the proportion suggested by the null hypothesis.
8 0
3 years ago
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A $3000 loan has an annual interest rate of 6.6% on the amount borrowed. How much time has elapsed if the interest is now $1386?
san4es73 [151]

Answer:

7

Step-by-step explanation:

time=<u>interest</u>

           P*R

time=<u>1386*</u>100

   6.6 * 3000

<u>time=7</u>

7 0
2 years ago
That $3.00 app you wanted is on sale for 32% off. What will it cost now?
Diano4ka-milaya [45]

Answer:

$2.04

Step-by-step explanation:

First, convert 32% in to a decimal.

.32

Then, multiply .32 by $3.

= $2.04

3 0
3 years ago
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