4 years ago

Lydia collects shells. She has 24 sea snail shes

Mathematics

2 answers:

Wittaler [7]4 years ago

8 0

Answer:

Step-by-step explanation:

the greatest common factor is 8 so you know you have to have 8 rows, divide all of those number by 8 and add the answers

Len [333]4 years ago

8 0

Answer:

Step-by-step explanation:

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Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. the

NeTakaya

$n_1=25, n_2=25\\ \bar{X_1}=35.5, \bar{X_2}=33\\ s_1=3, s_2=4$

Pooled Combined Variance $s_p=12.5$

Test Statistic:

$t=\frac{\left(\bar{X_1}-\bar{X_2}\right)}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}}$

$t=\frac{\left(35.5-33\right)}{12.5\sqrt{\frac{1}{25}+\frac{1}{25}}}$

$\left|t\right|=0.01414$

Degrees of freedom = $n_1+n_2-2=25+25-2=48$

$\alpha =0.05$

$t-Critical =t_{\alpha /2, n_1+n_2-2}=t_{0.025, 48}=-2.0206 \\Table value=|t|=2.0206\\|t|=2.0206$

The table value is greater than the calculated value.

Thus we accept H0.

8 0

3 years ago

Please help??? thanks!!!

Burka [1]

I believe its d because you subtract (-3 -7 1 9) from both sides

7 0

3 years ago

Will mark BRAINLIEST and give 5 stars

JulsSmile [24]

Answer:

364

Step-by-step explanation:

Hope this helps.

3 0

3 years ago

A writer’s last four articles and fees paid have been recorded below. What is the rate of change in the writer’s fee from writin

sineoko [7]

Answer:

i don't think anyone an answer this without the picture below.

Step-by-step explanation:

6 0

3 years ago

If a penny is tossed five times, what is the probability of all tails? a zero b 1/16 c 1/32 d larger than the probability of all

amid [387]

Required probability = (1/2)^5 = 1/32

Its c (assuming that its a fair coin).

4 0

3 years ago