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Luba_88 [7]
3 years ago
6

What is the mean of the data set: 1, 3, 3, 5, 9 , 11, 13, 13, 20, 21 ?

Mathematics
1 answer:
insens350 [35]3 years ago
6 0

Step-by-step explanation:

mean=sum of observation by number of observation=1+3+3+5+9+11+13+13+20+21by 10=99by10

You might be interested in
If you spin the spinner 96 times, what is the best prediction possible for the number of times it will land on yellow or red? Bl
algol [13]
Probability of it turning out the way you want =

         (number of different outcomes that you like)
divided by
         (total number of ways it can possibly turn out) .

Total number of ways the spinner can land = (1 + 4 + 6 + 1) = 12
Number of ways you'll be happy with = (yellow + red) = (6 + 4) = 10

Probability of a spin that you like =    10/12  =  5/6  =  (83 and 1/3) % .

If the spinner is honest, well-balanced, and doesn't stick or scrape,
and nobody blows or sits on it while it's spinning, then you'll predict
that  5/6  of the spins will turn out in ways that you like.

         5/6  of  96  =  80 spins .
3 0
3 years ago
Joseph’s garden is 9 feet wide and 12 feet long. Alana’s garden is 7 feet wide and 25 feet long.
sertanlavr [38]

area of Josephs garden = 9*12 = 108 square feet

area for Alana's garden = 7 *25 = 175 square feet

175/108 = 1.62

Alan's garden is 1.62 times larger

3 0
3 years ago
Hey I just started yesterday it says I have to ask a question so what is 2/0 equal? :)
lubasha [3.4K]
What do u mean do u have a picture
4 0
3 years ago
Read 2 more answers
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
r-ruslan [8.4K]

Given:

The given quadratic equation is:

12a^2+9a+7=0

To find:

The solution for the given quadratic equation in simplest form by using the quadratic formula.

Solution:

Consider a quadratic equation is defined as ax^2+bx+c=0, then the quadratic formula is:

x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

The given quadratic equation is:

12a^2+9a+7=0

We have, a=12,b=9,c=7. Using the quadratic formula, we get

x=\dfrac{-(9)\pm \sqrt{(9)^2-4(12)(7)}}{2(12)}

x=\dfrac{-9\pm \sqrt{81-336}}{24}

x=\dfrac{-9\pm \sqrt{-255}}{24}

x=\dfrac{-9\pm i\sqrt{255}}{24}              [\because \sqrt{-a}=i\sqrt{a}]

The solutions of the given equations are x=\dfrac{-9-i\sqrt{255}}{24} and x=\dfrac{-9+i\sqrt{255}}{24}.

Hence, the correct option is B.

3 0
3 years ago
If they have 362 roles of wrapping paper and they sold 4,706$ of wrapping paper how much was one role?
Ivenika [448]

Answer: $13

Step-by-step explanation:

From the question, we divide the number of 362 roles by the amount sold.

That is if 362 roles = $4706

1 role = $4706/362 = $13

1 role costs $13

I hope this helps, please mark as brainliest.

6 0
3 years ago
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