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Slav-nsk [51]
3 years ago
13

Mika is a local farmer who is interested in how often residents in her town go to a farmer's market each month. She surveys 124

families and finds that, on average, those families visit a farmers' market 4.2 times per month with a sample standard deviation of 1.3. If Mika wants to be 99% confident (z=2.58) using this sample, what should her margin of error be and what does it mean?
Mathematics
1 answer:
Murljashka [212]3 years ago
5 0

Answer:

i found this pictur about how to solve

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Suppose a school has 20 classes: 16 with 25 students in each, three with 100 students in each, and one with 300 students for a t
expeople1 [14]
16 classes have 25 students each which EQUALS a total of 400 students and 3 classes which each have 100 students each which EQUALS a total of 300 and 1 class has a total of 300 students and the total number of students is 1000
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For every watch that Sarah sells, she earns $4. She gets an additional bonus of $50 for every 25 watches she sells. Last month,
kotegsom [21]

Answer:

89

Step-by-step explanation:

25 watches equals a $50 bonus + 25 * 4

25*4=100

100+50=150

150 can go into 506 three times with a remainder of 56.

since it fits three times that is 75 watches

now divided the remainder by 4 and add this to 75.

56/4=14

75+14=89

89 watches

4 0
3 years ago
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8090 [49]
Uh it's 5? I'm confused
8 0
3 years ago
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Which statements about experimental probability are true?
OverLord2011 [107]

Answer:

the empirical probability , relative frequency ,or experimental probability of an event is the ratio of the number of outcomes in which a specified even occurs to the total number of trials , not in a theoretical sample space but in an actual experiment.

Step-by-step explanation:

7 0
3 years ago
A 5-column table has 4 rows. The first column has entries A, B, C, Total. The second column is labeled X with entries 45, 20, 25
Setler [38]

Answer:

Step-by-step explanation:

To see if two events are independent you can use the formula P(a|b) = P(a)

In this problem P(C|Y) = 35/75 = .4667 and P(C) = 110/300 = 3.667,

therefore C and Y are not independent events because P(C∣Y) ≠ P(C).

The answer is choice D

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3 years ago
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