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Gnom [1K]
3 years ago
13

What is the greatest common factor of 30 and 75? A. 25 B. 15 C. 5 D. 3

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
3 0

Answer:

B).15

Step-by-step explanation:

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An odd number under 50 but least 5 factors
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5,15,25,35,45,55 ext.
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3 years ago
The heights, in inches, of five people on a basketball team at listed below 65, 58, 64, 61, 67 explains the meaning of the meani
zhenek [66]

Using it's concept, it is found that the mean absolute deviation of 2.8 means that the heights differ from the mean by an average of 2.8 inches.

<h3>What is the mean absolute deviation of a data-set?</h3>

  • The mean of a data-set is given by the sum of all observations divided by the number of observations.
  • The mean absolute deviation of a data-set is the sum of the absolute value of the difference between each observation and the mean, divided by the number of observations.
  • The mean absolute deviation represents the average by which the values differ from the mean.

In this problem, the mean is given by:

M = (65 + 58 + 64 + 61 + 67)/5 = 63.

Hence the mean absolute deviation is given by:

MAD = (|65-63| + |58-63| + |64-63| + |61-63| + |67-63|)/5 = 14/5 = 2.8.

The mean absolute deviation of 2.8 means that the heights differ from the mean by an average of 2.8 inches.

More can be learned about mean absolute deviation at brainly.com/question/3250070

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8 0
2 years ago
A race director is preparing for an upcoming marathon and estimates that the mean time to
Taya2010 [7]

93.06% of the race is longer than 236 minutes.

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean,\sigma=standard\ deviation

Given that μ = 310, σ = 50

For x > 236:

z=\frac{236-310}{50}=-1.48

From the normal distribution table:

P(x > 236) = P(z > -1.48) = 1 - P(z < -1.48) = 1 - 0.0694 = 0.9306 =  93.06%

93.06% of the race is longer than 236 minutes.

Find out more on z score at: brainly.com/question/25638875

3 0
2 years ago
I'm confused ‍♀️ please help
disa [49]
It would be the second bubble 24/8. The answer to 24/8 is 3 so they saw 3 octopuses in the tank.
7 0
2 years ago
Read 2 more answers
On Monday, 284 students went on a trip to the zoo. All 5
77julia77 [94]

Answer:

56

Step-by-step explanation:

(284 - 4) \div 5 = 280 \div 5 = 56

3 0
3 years ago
Read 2 more answers
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