<span>0.000938 in scientific notion.
First we need to move the decimal to its right and we need a number which is between 1-10.
0.000938
00.00938
000.0938
0000.938
00009.38
We moved the decimal 4 times and to the right so it will be negative. -4.
9.38 </span>× 10^-4
Scientific notation of 0.000938 is 9.38 × 10^-4.
Check:-
9.38 × 10^-4 = <span>0.000938
</span>0.000938 = <span>0.000938
</span>Correct!
<span>Scientific notation of 0.000938 is 9.38 × 10^-4.</span>
Answer:
a) p-hat (sampling distribution of sample proportions)
b) Symmetric
c) σ=0.058
d) Standard error
e) If we increase the sample size from 40 to 90 students, the standard error becomes two thirds of the previous standard error (se=0.667).
Step-by-step explanation:
a) This distribution is called the <em>sampling distribution of sample proportions</em> <em>(p-hat)</em>.
b) The shape of this distribution is expected to somewhat normal, symmetrical and centered around 16%.
This happens because the expected sample proportion is 0.16. Some samples will have a proportion over 0.16 and others below, but the most of them will be around the population mean. In other words, the sample proportions is a non-biased estimator of the population proportion.
c) The variability of this distribution, represented by the standard error, is:
d) The formal name is Standard error.
e) If we divided the variability of the distribution with sample size n=90 to the variability of the distribution with sample size n=40, we have:

If we increase the sample size from 40 to 90 students, the standard error becomes two thirds of the previous standard error (se=0.667).
Answer:
30
Step-by-step explanation:
Did you just do this for fun?
Either way have a good rest of your day!
Answer:
2
Step-by-step explanation:
1,3,4 are arithmetic sequences
2 is a geometric sequence