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GrogVix [38]
3 years ago
14

Construct a sample (with at least two different values in the set) of 3 measurements whose variance is negative. If this is not

possible, indicate "Cannot create sample".
Mathematics
1 answer:
Bond [772]3 years ago
5 0

This is not possible. Why not? Because the smallest the variance can get is 0.

Recall that 's' represents the standard deviation, so s^2 is the variance. It basically measures how spread out the values are. The higher the variance, the more spread out the data. You can think of it as "average distance from the mean". If the variance is 0, then all of the values are at the same point. So you could have a list like {2,2,2,2,2} which has variance 0. We cannot get any smaller variance than that. If your teacher insists all the values in the list are different, then the variance will be greater than 0.

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How to do this question
Tema [17]

Answer:

f(8) = \underline{5}

Step-by-step explanation:

We can see it on the given table of values.

6 0
2 years ago
You are drawing two cards, without replacement, from a standard deck of 52 cards. What is the
Serga [27]

Answer:

Dear student,

Answer to your query is provided below

Probability of drawing a 2 at first is (4/52) = (1/13)

Probability of drawing a face card in second try without replacement = 12/51

Step-by-step explanation:

Total no. Of cards = 52

Total no. Of cards of 2 = 4

Prob. Of drawing 2 = 4/52

Total no. Of face card = 12

Total no.of cards left in deck = 51

Prob. Of drawing face card = 12/51

5 0
2 years ago
What is the answer to the problem
denpristay [2]

Answer:

Option 2

Step-by-step explanation:

(12) - 2 = 10

(11) - 2 = 9

0 x 4 = 0

1 x 4 = 4

8 0
2 years ago
Read 2 more answers
100-[(25/5) *10]= ? Not understanding, please help
Iteru [2.4K]
Original Question:
100 - [(25/5) x 10] = ?
Note: Always answer what's inside FIRST. In this case, the main ts the brackets, but there's also parenthesis in it too. So solve that.
→100 - [(5) x 10] = ?
Now, solve what's inside the brackets.
→100 - [50] = ?
Well, you can get rid of the brackets.
→100 - 50 = ?
Subtract!
→100 - 50 = 50
Solution:
50

4 0
2 years ago
Amaya is excited to go to the used video game store to buy a game system later today. The game system usually costs x dollars, b
Ksenya-84 [330]

Answer:

x(85/100)

Step-by-step explanation:

100-15 = 85

x(85/100)

5 0
2 years ago
Read 2 more answers
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