What is the median of the following 7 scores?

1 answer:

8 0

First, you want to put all the numbers in order from least to greatest.

21, 33, 33, 42, 67, 79, 89

Now, you can use this song to help remember how to do these problems.

Cross off the sides till you get to the center. 1 is good, 2 is bad. (If you get two numbers in the middle) add then divide by two.

Cross off 21, then 89, then 33, then 79, then 33, then 67. Now, you're left with 42 in the middle. That is your median. Hope this helps! :)

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Answer:

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Step-by-step explanation:

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A poll found that 5% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer cam

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Answer:

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= 1 - (0.95)¹¹

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b) Calculate the probability that exactly 2 of them suffer from arachnophobia? 0.08666

= P(x = 2)

= (¹¹₂) x (0.05)² x (0.95)⁹

where ¹¹₂ = 11! / (2!9!) = (11 x 10) / (2 x 1) = 55

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c) Calculate the probability that at most 1 of them suffers from arachnophobia?

P(x ≤ 1)

= P(x = 0) + P(x = 1)

= [(¹¹₀) x 0.05⁰ x 0.95¹¹] + [(¹¹₁) x 0.05¹ x 0.95¹⁰]

= (1 x 1 x 0.5688) + (11 x 0.05 x 0.598736939) = 0.5688 + 0.3293 = 0.8981

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2 years ago

3 Ximena draws an X shape in the coordinate plane as shown. Draw the images of

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<em>See attachment for the image of each rotation.</em>

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The top coordinates of the X shape are:

$A = (0,0)$