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xeze [42]
2 years ago
7

In a normal distribution, 95% of the data fall within how many standard deviations of the mean? O A. Three standard deviations B

. It cannot be determined from the given information. O C. Two standard deviations O D. One standard deviation SUBM​

Mathematics
1 answer:
Galina-37 [17]2 years ago
4 0

Answer:

Two standard deviations

Step-by-step explanation:

The Z score is obtained using the mean and standard deviation, according to the empirical. Rule, which gives percentage of values that lie within an interval estimate in a normal distribution ;

one standard deviation lie within 68% of the mean

Two standard deviations lie within 95%

Three standard deviations lie within 99.7%

Hence, for the question given, 95% fall within 2 standard deviations of the mean

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Find the center and radius of the with the equation (x + 5) ^ 2 + (y - 2) ^ 2 = 25
iVinArrow [24]

Answer: Center: (5,0)

Radius:5

Step-by-step explanation: Happy to help :)

8 0
3 years ago
2a. Determine the equation of the line connecting the points (0, -1) and (2, 3) *
Sauron [17]
First create the equation y=Mx+ B

B is the y intercept so when y = 0, B = -1.

Now we have y=Mx - 1

The slope is M. We can calculate this by using the formula M = (y2 -y1) / (x2 - x1)

Use the points (0, -1) and (2,3) for these values. So y2 = 3, y1 = -1, x2 = 2, x1 = 0

Plug them into the equation and solve

M = (3 + 1) / (2 - 0)
M = 4/2 = 2

Now we have the equation y = 2x - 1

Next to figure out if the points given are on the line you take the values and plug them into your equation like so: 4 = 2(-2) - 1

2(-2) - 1 does not equal 4 so this point does not fall on this line. Follow this same procedure for the next point given.
8 0
3 years ago
Help asap please, dhebduhd
Kamila [148]
Hi there !

The answer is B. angle 4.

An alternate interior angle is diagonally across one angle on the inside of the transversal. Opposite of 5 on the inside is angle 4.

Hope this helps !
6 0
3 years ago
Read 2 more answers
How long does it take for a car driving at 0.92 per minute to drive at 7.4
blsea [12.9K]
ANSWER : ABOUT 8 MINUTES

0.92 * 8 = 7.36
7 0
3 years ago
Read 2 more answers
Please help me I really need this and show your work if possible
kogti [31]
The temperature at 9 am was -11 degrees.

We know that at 5 am, it was -7 degrees. Since the change of temperature is a negative number, then we subtract the absolute value of the change from -7. -7 - 3 = -10. Following this pattern, we then have:
-10 - 2 = -12 (6 am - 7 am)
-12 - 5 = -17 (7 am - 8 am)
-17 + 6 = -11 (8 am - 9 am, added since it was a positive change of temperature)

And our final answer is -11 degrees Fahrenheit.
5 0
3 years ago
Read 2 more answers
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