1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
qaws [65]
4 years ago
7

The total scores on the Medical College Admissions Test (MCAT) in 2013 follow a Normal distribution with mean 25.3 and standard

deviation 6.5.
a) what are the median and the first and third quartiles of the MCAT scores? what is the interquartile range?

please i need help!!!
Mathematics
1 answer:
aivan3 [116]4 years ago
8 0
1st quartile (25%) and the 3rd quartile (75%) values are -0.6745 and 0.6745 respectively. Use this formula z= (x-mean)SD -0.6745 = (x-25.3)/6.5. 
x=25.3 - 0.6745(6.5) = 25.3 - 4.3843 = 20.9157 1st Quartile
 0.6745 = (x - 25.3) 6.5
 x = 25.3 + 0.6745 = 25.3 + 4.3843 = 29.6843 3rd quartile 
 interquartile range is the difference between the 1st quartile and the 4th quartile
You might be interested in
Rachel’s free-throw average for basketball is 60%. Describe how you can use 10 index cards to model this situation. Then use a s
Thepotemich [5.8K]

1. If Rachel's free-throw percentage is 60%, you can take 4 index cards away since 100 - 40 = 60%. For example, if those 10 index cards represent 10 free-throws, and her percentage is 60%, just take 60 away from the total (100%).

2. For the simulation, it's the same as problem 1. Since 50 is the total amount of shots she is going to take, and you know she is going make 60% of them, take 60% from 50 which gives you 30. That means she will make 30 of them and miss 20 of them

I hoped I helped

X8lue83rryX

8 0
3 years ago
The table below shows the amounts of lemon juice and sugar used in each container of lemonade. The ratio of lemon juice to sugar
lesantik [10]

Answer:

i believe the answer would be C! sorry if im wrong! ;-; <333

3 0
3 years ago
Read 2 more answers
Simplify the expression:<br> 5q+–8q
vodka [1.7K]

Answer:

-3q

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Terms

Step-by-step explanation:

<u>Step 1: Define</u>

5q + -8q

<u>Step 2: Simplify</u>

  1. Rewrite:                               5q - 8q
  2. Combine like terms:           -3q
3 0
3 years ago
Read 2 more answers
A company made 4 million in the second quarter this is 1/3 more then it made in the first quarter and 4/5 of what it made in the
Ratling [72]
In this problem, you have to find the total profit the company made in the three quarters which makes up 3/4 of the whole. In the second quarter, the profit is 4 million. Let x be the profit in the first quarter. Following the description,

4 = (1+1/3)x
x = 3 million

Thus, the second quarter made 5.33 million profit.

For the third quarter, let's assign it to the y variable. Following the description,

4 = (4/5)(y)
y = 5 million

Thus, the total profit is 4 + 3 + 5 = 12 million
7 0
3 years ago
what type of measurement scale is used for operating system? nominal scale ordinal scale interval scale ratio scale
skelet666 [1.2K]

We can actually deduce here that the type of measurement scale that is used for operating system is: Nominal scale.

<h3>What is nominal scale?</h3>

A nominal scale is actually known to be a measurement scale whereby numbers are used as “tags” or “labels” only in order to identify, locate or classify an object.

This measurement scale actually deals only with non-numeric variables. It can be used where numbers have no value.

Other measurement scales include:

  • Ordinal scale
  • Interval scale
  • Ratio scale

Learn more about nominal scale on brainly.com/question/13267344

#SPJ1

8 0
1 year ago
Other questions:
  • Identify true statements.
    8·1 answer
  • What is the point-slope equation of the line with slope -5 that contains the point (6,3)?
    6·1 answer
  • Given that ABDC : EFGH, what is m G?<br> 27°<br> 90°<br> 117°<br> 120°
    14·1 answer
  • What are all the keys that must be pressed, in correct order, on the calculator shown to find the value of 462 divided by 3?
    8·2 answers
  • Select the TWO statements that are true about Ja'Bria's numbers.
    6·2 answers
  • What does |x| mean? like what do the | | 'bars' symbolize or represent?
    13·1 answer
  • What is the sum of the interior angles of the polygon pictured below?
    8·1 answer
  • Here are the ingredients to make 12 cupcakes.
    5·1 answer
  • Please help! i can’t write the equation on here so look at the picture.
    7·2 answers
  • <img src="https://tex.z-dn.net/?f=%282%5Csqrt2%29%20%282-%5Csqrt3%29" id="TexFormula1" title="(2\sqrt2) (2-\sqrt3)" alt="(2\sqrt
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!