Mrs. Rodrigues wants to compare the spread of the test scores of her two biology classes. Which statistic should she use?

Answers

Answer 1
Answer: The statistics she should use should be one of the measures of variability. There are 4 measures of variability, namely, the range, inter-quartile range, variance, and the standard deviation. She can use the interquartile range to compare the scores by percentile ranking if she wants to know it.
Answer 2
Answer:

Answer:

The Answer is Standard DeviATION sorry i accidentally hit my caps lock

Step-by-step explanation:


Related Questions

Solve for x 8x^2-7x-18=0
Find the unit rate: $2 for 5 cans of dog food
Beth runs 20 miles each week for 8 weeks.How many miles does Beth run in 8 weeks?
To the lovers of math: challenge : please helpA company manufactures high-powered fountains that can be used to create elaborate water shows set to light and music.The company makes three models offountains, each of which can launch a vertical stream of water to a different height, as indicated in the table below. Model A Model B Model Cheight 77 100 240 time to fall (s) 2.194, ----, ----  initial velocity 70.2 , ----, 123.9 complete the following tasks, filling in the missing values in the table as you find them:(1)Find the time water would take to fall from each height in the table back to its starting level.(2)Find the initial upward velocity required for fountain B to launch the water to its maximum height(3)Create a function that will give you the minimum initial upward velocity ,v ,required to launch water to any given height , h. thank you
Which of these is a simplified form of the equation 8y + 6 = 7 + 2y + 3y?3y = 1 8y = 6 13y = 13 5y = 13

Given that Y = 2x^2-96, find x

Answers

This isn't an equation, so you cannot "solve for x."  However, you can factor, as follows:

y = 2(x^2-49) = 2(x-7)(x+7)

If you decide to set this = to zero, then you can solve for x:  {-7, 7}.

If a ⊂ b, b may have more elements than a. True false

Answers

That's true. If A is a subset of B, it means that every element in A is also an element in B. This means that B has, at least, as many elements as A. Nothing prevents B from having more elements though, which don't belong to A.

Consider this example:

A = \{1,2,3,4\},\quad B=\{1,2,3,4,5,6\}

A is a subset of B, because every element of A (1,2,3,4) is also an element of B (1,2,3,4 are in B as well).

Still, B has two more elements (5,6) which don't belong to A, so a superset can have (and typically does actually) more elements than its subset.

You have 60 marbles in a jar, two of which are red. (so 2 red, 58 not red)You pick 10 at random. What is the chance that you draw both red marbles?
Explanation please, not just the answer. Brainliest answer if you calculate it for 2 out of 251 total marbles as well.

Answers


Well, I agonized over this for a while, and I have something that we may want to consider.

The only probability formula I know how to use is

 Probability = (number of possible successes) / (total number of possibilities).

Can we work with that ?  Let's see . . .

The denominator of that fraction is the total number of ways to draw
10 marbles from a jar of 60 . . .

The first draw can be any one of 60 marbles. For each of those . . .
The second draw can be any one of the remaining 59.  For each of those . . .
The third draw can be any one of the remaining 58.
.
.
etc.

So the total number of ways to draw 10 from 60 is

       (60 x 59 x 58 x 57 x 56 x 55 x 54 x 53 x 52 x 51)

That's a very big number.  My calculator says something that rounds to
2.736 x 10¹⁷. But my calculator only shows 10 digits, so it can't show
all 18 digits in the number.  Fortunately, we don't need to see the whole
number written out.  We'll just write it in factorial notation, and go on
to do the numerator of the fraction, which is going to be much harder.

That number that we just found is equal to  (60!) / (50!) .  It's going to be
the denominator of the big fraction.

Now for the numerator.  That's going to be the number of ways that the
two red marbles can be included among the ten marbles drawn.

One red marble can be any one of the 10 marbles pulled out.
       For each of those . . .
The other red marble can be any one of the other 9 that are picked.

So there are (10 x 9) = 90 ways for the selected 10 to include both red ones.

SO !  Now, the probability that the ten that are drawn will include the two
red ones should be (it might be, it could be) . . .

             90 divided by  (60! / 50!)   .

Remember, that fraction on the right is just total number of ways
to pick 10 out of 60 .  The probability of including both red ones 
in the draw is  90 divided by that number.  It's very small.

Again from my calculator, it's    3.29 x 10⁻¹⁴ percent.

I have no confidence in my answer, but I invite you to look it over, along with
all the real gurus out there. 

If I'm wrong, then I've stolen only 5 points that I'm not entitled to, and at least
I did put some effort into it.

Here you have two proportions. 2/60 and 10/60. I would cross multiply. 
Giving you 20/120.
Simplify that to get 1/6. So you have a 1 in 6 chance of getting both the red marbles.
(I'm not 100% sure since it's been a while so you might want to get a second opinion.) 
Not sure what you mean by the second part, but hope I provided some help :)

Mr. Prince takes his wife and two children tothe circus. If the price of a child’s ticket is 1/2
the price of an adult ticket and Mr. Prince pays
a total of $12.60, find the price of a child’s
ticket.

Answers

Facts:
MR Price takes his wife + two children
The price of adult's ticket is 2 times higher that child's
They paid $12.6 in total

Answer:
X is the price of child's ticket so equation will look:

2x (fathers' ticket) + 2x (mother's ticket) + x (first child) + x (second child) = $12.6 (total price)

6x = 12.6
X = 2.1

Child's ticket costs $2.1

Answer:

12

Step-by-step explanation:

There is a pizza cut into 8ths, if you eat 3/4 of it how much is left?

Answers

1/4 of 8 is 2. that means 3/4 of 8 is 6. 2, or 1/4 is left over.

Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it

Answers

To rename mixed numbers it need to be keep in mind that the equal forms of the fraction or the whole number. The given mixed number is renamed as three and half after the subtraction, because the value of the mixed number is changed after the subtraction.

Given information-

Mixed number given in the problem is,

4(1)/(4)

This mixed number can be named as four and one fourth.

What is mixed number?

Mixed numbers are the combination of the whole number and the fraction number. When the whole number and the part of the whole number is written combined, it is called the mixed number.

Subtracting mixed numbers by renaming-

To rename mixed numbers it need to be keep in mind that the equal forms of the fraction or the whole number.

Now to subtract the given mixed number from the given fraction number change it in the form of fraction form,

4(1)/(4) -(3)/(4) =(17)/(4) -(3)/(4)\n

Subtract as the denominator is same,

4(1)/(4) -(3)/(4) =(17-3)/(4)\n4(1)/(4) -(3)/(4) =(14)/(4)

The result 14/4 can be renamed in the mixed form as,

(14)/(4)=3(1)/(2)

Hence the given mixed number is renamed as three and half after the subtraction, because the value of the mixed number is changed after the subtraction.

Learn more about the mixed number here;

brainly.com/question/2639375?

You would rename four and one fourth when subtracted from three fourths because when you subtract the fractions you get a different fraction for your answer.
4 (1)/(4)- (3)/(4)= 3 (1)/(2)
so you would said three and one half instead of four and one fourth.
Hope I helped!