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tatiyna
2 years ago
10

What is the range median and mode for 8 7 12 7 11 10 7 12

Mathematics
1 answer:
strojnjashka [21]2 years ago
3 0

Answer:

Range = 5, Median = 9, Mode = 7

Step-by-step explanation:

First, we put them in order from least to greatest.

So its 7, 7, 7, 8, 10, 11, 12, 12

The range is the largest number minus the smallest number, so 12-7=5. The range is 5.

The median is the number in the middle, so we cross off numbers from both sides. That leaves us with 8 and 10. The number between them is 9, so the median is 9. (the actual process to find the median if there's 2 numbers in the middle is by adding them together and dividing them by 2)

The mode is just which number appears the most often. So 7 is the mode.

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I need help asap! 13 points! Might give brainliest!
Mars2501 [29]
If the banana costs 10 dollars and you give 11 dollars, you have paid 110 percent of the cost.
7 0
2 years ago
let X represent the amount of time till the next student will arriv ein the library partking lot at the university. If we know t
AlekseyPX

Answer:

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

Mean of 4 minutes

This means that m = 4, \mu = \frac{1}{4} = 0.25

Find the probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot:

This is:

P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2)

In which

P(X \leq 132) = 1 - e^{-0.25*132} = 1

P(X \leq 2) = 1 - e^{-0.25*2} = 0.393469

P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2) = 1 - 0.393469 = 0.606531

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

4 0
2 years ago
20) Fred bought 3 shirts, each of the same price and received less than $12 change from a $50 bill.
gladu [14]
<h3>Three t-shirts can be represented as "X" and 3 will be represented as the number of t-shirts Fred bought.</h3><h3 /><h2>3x = 50</h2><h3>÷3       ÷3    ← divide both sides by 3</h3><h3 /><h3>X = $16.66 maximum cost.</h3>
4 0
3 years ago
Read 2 more answers
Given that f(x) = x2 – 13x + 36 and g(x) = x – 9, find (f + g)(x) and express the result in standard form.
olga nikolaevna [1]

Answer:

x² - 12x + 27

Step-by-step explanation:

(f + g)(x)

= f(x) + g(x)

= x² - 13x + 36 + x - 9 ← collect like terms

= x² - 12x + 27 ← in standard form

5 0
2 years ago
How to solve it with walk through steps
mario62 [17]
You can say

x+y=5
x=5-y

You know the value of x, put it into the next equation.

3(5-y)-7y=19
15-3y-7y=19
15-19 = 10y
-4=10y
-4/10=y
-2/5=y

Put y value back into either equation to find value of x.

x+y=5
x-2/5=5
x=5+2/5
x=27/5

Therefore, x,y = (27/5, -2/5)

Hope I helped :)
6 0
3 years ago
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