Step-by-step explanation:
40children - 23 (with A, O) = 17left
26 letter in alphabet- ( A, O) = 24 letter left
24 letters left - 14 (not used for 1st letters) = 10
10 letters left to use/ 17 children left
10÷17 = 0.5882352941 x 10 =5.8 or as close to 6 I can get
It’s 1.5 because the ratio of similar sides is 1:2. 3/6 is the same as 1.5/3
Answer:
y = -16.25
Step-by-step explanation:
It can also be written as
-8y = 26 * 5
-8y = 130
y = 130/-8 = - 65/4 = -16.25
The Arithmetic Sequence Formula:
We have:
Calculate d (common difference):
Calculate 40th term:
Substitute:
<h2>
Answer with explanation:-</h2>
Let be the population mean.
By considering the given information , we have
, since the alternative hypothesis is right tailed , so the test is right tail test.
Given : Sample size : n=64, which is a large sample (n>30) so we use z-test.
Sample mean :
Then, Standard deviation :
Test statistic for population mean :-
i.e.
P-value =
Since the p-value is less than the significance level , so we reject the null hypothesis that mean we can accept the alternative hypothesis.
Thus , we conclude that the true mean concentration can exceeds 22 blops .