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Monica [59]
3 years ago
11

Provide an appropriate response. A private opinion poll is conducted for a politician to determine what proportion of the popula

tion favors decriminalizing marijuana possession. How large a sample is needed in order to be 95 % confident that the sample proportion will not differ from the true proportion by more than 4 %? A. 13 B. 601 C. 423 D. 1201
Mathematics
1 answer:
Aloiza [94]3 years ago
6 0

Answer:

Step-by-step explanation:

Download docx
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Prove that the gregorian calendar repeats itself every 400 years.
Setler79 [48]

The calendar obviously has an integral number of years and months in 400 years. If it has an integral number of weeks, then it will repeat itself after that time. The rules of the calendar eliminate a leap year in 3 out of the four century years, so there are 97 leap years in 400 years. The number of excess days of the week in 400 years can be found by ...

(303·365) mod 7 + (97·366) mod 7 = (2·1 + 6·2) mod 7 = 14 mod 7 = 0

Thus, there are also an integral number of weeks in 400 years.

The first day of the week is the same at the start of every 400-year interval, so the calendar repeats every 400 years.

3 0
3 years ago
A debate team of 4 members for a high school will be chosen randomly from a potential group of 15 students. Ten of the 15 studen
iragen [17]

Answer:

A) 0.1538

Step-by-step explanation:

4 members are going to be chosen:

M1 - M2 - M3 - M4

We have to find the probability that for each member, one without experience is chosen. There is no replacents.

Initially, we have 15 students, of which 10 have none experience. So the probability that M1 is chosen as a student with no experience is \frac{10}{15}.

Then, there are 14 students, of which 9 have no experience. So the probability that M2 is chosen as a student with no experience is \frac{9}{14}.

For the third member, there are 13 students, of which 8 have no experience. So the probability that M3 is chosen as a student with no experience is \frac{8}{13}.

For the last member, there are 12 students, of which 7 have no experience. So the probability that M4 is chosen as a student with no experience is \frac{7}{12}.

What is the probability that none of the members chosen for the team have any competition experience?

This is

P = \frac{10}{15}*\frac{9}{14}*\frac{8}{13}*\frac{7}{12} = 0.1538

The correct answer is:

A) 0.1538

7 0
3 years ago
Assume that y varies inversely with x. If y=12 when x=5, find y when x=3
NemiM [27]
Inversely variation means xy = c, where c is a constant

Since when y = 12 x = 5, then c = 12*5 = 60

So xy = 60

Now when x = 3, y = 60/3 = 20
7 0
3 years ago
Please help!<br> Solve for x.
sergij07 [2.7K]

Hello

Good Luck

Goodbye ♥

6 0
3 years ago
Naomi recorded the total weight of different numbers of apples. Her results are shown by using the scatterplot and the trend lin
dybincka [34]

Answer:

It's D. The narrative will change depending on the narrator's tone and point of view.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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