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horsena [70]
3 years ago
14

Question 17 The numbers in the circles go together in a certain way. Find the missing number marked by the question mark: 180, 1

4 120, 8 A:70 B: 80 C:60 D: Mr Sockman ?, 4 D:40
Mathematics
1 answer:
Mkey [24]3 years ago
5 0

Answer:

B. 80

Step-by-step explanation:

According To Question, We Have

(180,14) (120,8) (? , 4) (220,18)

  • it Clearly Visible That ( 180*a+b=14 ) only Possible when we Put a=1/10 & b=-4. Thus, (180*1/10)-4 ⇔ 18-4 = 14
  • Same For All (120*a+b=8)

        Thus, (120*1/10)-4 ⇔ 120-4 = 8

Now (?*1/10)-4=4 solve it .

Thus, ?*1/10=8⇔?=80 is Our Missing Number .

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Which of the following is a benefit of increasing the sample size when trying to estimate the mean from a sample average?
andrezito [222]

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Step-by-step explanation:

The larger the sample size, the lower the standard deviation. The standard deviation shows how the data is spread from the mean. Therefore, benefit of increasing the sample size when trying to estimate the mean from a sample average are

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3 years ago
Which is the last operation performed when evaluating (8-2) + 4 for x = 3?
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6 0
4 years ago
Read 2 more answers
Help please this is due today
dangina [55]

The experimental probability that in a group of 4 students, at least one of them has brown eyes is 95%.

<h3>What is Experimental Probability?</h3>

Experimental probability is a probability that is determined on the basis of a series of experiments. A random experiment is done and is repeated many times to determine their likelihood and each repetition is known as a trial. The experiment is conducted to find the chance of an event to occur or not to occur.

Here , Favorable Outcome = 19

          Total outcomes = 20

Probability = Favorable Outcome/ Total Outcome

                   = 19 / 20

                   = 95%

Thus, the experimental probability that in a group of 4 students, at least one of them has brown eyes is 95%.

Learn more about Experimental Probability from:

brainly.com/question/15729871

#SPJ1

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2 years ago
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