3 years ago

What is the mean of the data set 125, 141, 213, 155, 281

Mathematics

1 answer:

icang [17]3 years ago

6 0

Answer:

183

Step-by-step explanation:

The mean is the average. You find it by adding 125 + 141 + 213 + 155 +281.

This renders a sum of 915, which you then divide by the number of numbers you added, 5.

915 ÷ 5 = 183

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5+ (9.7 - b ) =6.8 what is the value of b

Alex777 [14]

Answer:

$b = 7.9$

Step-by-step explanation:

$5 + (9.7 - b) = 6.8 \\ 5 + 9.7 - b = 6.8 \\ 14.7 - b = 6.8 \\ - b = 6.8 - 14.7 \\ - b = - 7.9 \\ = b = 7.9$

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3 years ago

(sin30°+cos60°) (tan60°-sec30°)<br>

olga_2 [115]

Answer:

$\frac{ \sqrt{3} }{3}$

Step-by-step explanation:

$(sin30 + \cos(60) )( \tan(60) - \sec(30)$

$( \frac{1}{2} + \frac{1}{2} )( \sqrt{3} - \frac{2 \sqrt{3} }{3})$

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2 years ago

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mr Goodwill [35]

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3 years ago

A bag contains eight tiles labeled A, B, C, D, E, F, G, and H. One tile will be randomly picked.

nignag [31]

Answer:

6/8 = 3/4

Step-by-step explanation:

There are 2 vowels and 6 consonants in the set

Probability is 6 chances / 8 possible of picking an non vowel

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2 years ago

The triplets, nick, Brian, and dan, exit their preschool classroom every day in a random order. Create an organized list to show

AfilCa [17]

The set of all possibilities is called sample space and is denoted by S.

So, S = {NBD, NDB, BDN, BND, DBN, DNB} and n(S) = 8

and we need to find the probability of NBD

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The probability of an even is defined by p(E) = $\frac{n(E)}{n(S)}$

Hence, p(E) = $\frac{1}{8}$

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3 years ago