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Kamila [148]
3 years ago
11

The chart shows number of minutes students spent studying for a test and their grade on the test. Draw a scatter plot of the dat

a.
Which equation is closest to the line of best fit?

A) y=-1/3x-52

B) y= 1/3x + 52

C) y=-52x + 1/3

D) y=52x-1/3

Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

the answer is A). y=1/3×-52

kupik [55]3 years ago
4 0
I believe the right answer is A
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A 3. A card is pulled from a standard deck of cards.
dexar [7]
<h3>Answer:    4/13</h3>

Explanation:

There are 13 hearts, including the queen of hearts. Then there are 3 more queens to get us to 13+3 = 16 cards we're after.

There are 16 cards we want out of 52 total, so the probability is 16/52 = (4*4)/(4*13) = 4/13

3 0
2 years ago
3/4 -0.8 7/10 -3/4 from least to greatest
mylen [45]

Answer:

-0.8 < -3/4 < 7/10 < 3/4

Step-by-step explanation:

theyre decreasing

3 0
3 years ago
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An elevator starts at the basement with 8 people (not including the elevator operator) and discharges them all by the time it re
Rus_ich [418]

Answer:

1287

Step-by-step explanation:

Number of people in elevator , n = 8

Number of floors, r = 6

Since they all look alike, arrangement doesn't matter, the we use combination :

(n+r-1 r - 1) = (8+6-1 C 6-1) = 13C5

Recall:

nCr = n! / (n-r)!r!

13C5 = 13! / (13-5)!5!

13C5 = 13*12*11*10*9 / 5*4*3*2*1

= 1287

4 0
3 years ago
ok I'm bout to get to the point my mother hates people that don't are not straight and I'm bi so how do I come out to my mom and
Vlada [557]

Answer:

you should life make a cake and put frosting words on it that say I'm bi and i'm proud!

3 0
3 years ago
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A Statistics class is estimating the mean height of all female students at their college. They collect a random sample of 36 fem
Butoxors [25]

Answer: = ( 63.9, 66.7)

Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 65.3

Standard deviation r = 5.2

Number of samples n = 36

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

65.3 +/-1.645(5.2/√36)

65.3 +/-1.645(0.86667)

65.3+/- 1.4257

65.3+/- 1.4

= ( 63.9, 66.7)

Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)

4 0
3 years ago
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