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vodomira [7]
3 years ago
12

Suppose a sample of 256 was taken from a population with a standard deviation of 64 centimeters. What is the margin of error for

a 68% confidence interval?
A. 6
B. 8
C. 10
D. 4
Mathematics
2 answers:
Ganezh [65]3 years ago
8 0
I think the answer is b
Serhud [2]3 years ago
6 0
I feel like the answer is d
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sarah teacher asked her to writte fifteen thousand and four in numerals she wrote 150,004 is she correct
Arada [10]

Answer:

no

Step-by-step explanation:

it would be 15,004 not 150,004

7 0
3 years ago
Read 2 more answers
Planes X and Y are perpendicular. Points A, E, F, and G are points only in plane X. Points R and S are points in both planes X a
NemiM [27]
Given:

Planes X and Y are perpendicular to each other
Points A, E, F, and G are points only in plane X
Points R and S are points in both planes X and Y
Lines EA and FG are parallel

The lines which could be perpendicular to RS are EA and FG. 
6 0
3 years ago
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Round off 37.005 to the nearest 1sf,2dp,3dp,1dp,2sf​
Ivenika [448]

Answer:

37.005 to:

1sf: 40

2dp: 37.01

3dp: 37.005

1dp: 37

2sf: 37

7 0
3 years ago
Find the distance between xequals[Start 2 By 1 Matrix 1st Row 1st Column 8 2nd Row 1st Column negative 5 EndMatrix ]and yequals[
kherson [118]

Answer:

Distance =√(x₁ - y₁)²+ (x₂ - y₂)² = √97 = 9.85

Step-by-step explanation:

The Matrix X and Y could also be referred to as vectors in Rⁿ dimensions.

if Vector X = ( x₁ , x₂)   and  Vector  Y = (y₁ , y₂)

then, Distance (X-Y) = ||X-Y|| = √(x₁ - y₁)²+ (x₂ - y₂)²

where, x₁ = 8, x₂ = -5   and  y₁ = -1 , y₂ = -9

Distance = √(8 - (-1))²+ (-5 - (-9))² = √9² + 4² =√97 = 9.85

4 0
3 years ago
Two cards are drawn from a standard deck of cards without replacement. Find the probability of drawing a heart and a club in tha
Katyanochek1 [597]

Answer:

4/663

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome/Total outcome

Since we are to draw from a pack of card, the total outcome will be 52

Since there are 4 hearts;

Pr(selecting heart) = 4/52 = 1/13

If a club is then selected without replacement, the total number of card remaining will be 51;

Pr(selecting a heart) = 4/51

probability of drawing a heart and a club in that order = 4/52 * 4/51

probability of drawing a heart and a club in that order = 16/2652

probability of drawing a heart and a club in that order = 4/663

8 0
3 years ago
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