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mr_godi [17]
3 years ago
14

Compare the mean of the population with the mean of a sample.

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
8 0

Answer:1:4

2:3.25

3:0.75

OverLord2011 [107]3 years ago
7 0

Answer:

1:4

2:3.25

3:0.75

Step-by-step explanation:

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Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing an ace.
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Answer:

There are 52 cards in a deck. The total number of outcomes possible when picking 2 cards and replacing them is 52 * 52 = 2704.

There are 4 10s and 4 aces so the total number of successful outcomes = 4 * 4 = 16.

Probability = 16 / 2704 = 1 / 169

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3 years ago
The slopes of the perpendicular lines are ____.
Veseljchak [2.6K]

Answer:

a) negative reciprocals

Step-by-step explanation:

8 0
3 years ago
Solve for x on the interval [0, 2pi]<br> Sinx = cosx + 1
lisov135 [29]

Answer:

π

Step-by-step explanation:

Solve for x on the interval [0, 2pi]

Given the equation

Sinx = cosx + 1

Square both sides of the equation

Sin²x = (cos x + 1)²

Sin²x = cos²x + 2cos x + 1

Since Sin²x = 1 - cos²x

1 - cos²x = cos²x + 2cos x + 1

Collect like terms

1-1-cos²x-cos²x-2cos x  = 0

-2cos²x-2cos x = 0

-2cos²x = 2cos x

-cosx = 1

cos x = -1

x = arccos -1

x = 180 degrees

<em>Hence the value of x = π</em>

8 0
2 years ago
What is sin A?
jok3333 [9.3K]
I would say B but Im not sure 
6 0
3 years ago
Read 2 more answers
Suppose S and T are mutually exclusive events. Find P(S or T) if P(S) = 65% and P(T) = 7%.
Diano4ka-milaya [45]
When you have two mutually exclusive events, to find the probability of one or another, you add the probabilities.
65+7=72
Final answer: B
5 0
3 years ago
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