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
Bezzdna [24]
3 years ago
8

Twenty students in Class A and 20 students in Class B were asked how many hours they took to prepare for an exam. The data sets

represent their answers. Class A: {2, 5, 7, 6, 4, 3, 8, 7, 4, 5, 7, 6, 3, 5, 4, 2, 4, 6, 3, 5} Class B: {3, 7, 6, 4, 3, 2, 4, 5, 6, 7, 2, 2, 2, 3, 4, 5, 2, 2, 5, 6} Which statement is true for the data sets? The mean study time of students in Class A is less than students in Class B. The mean study time of students in Class B is less than students in Class A. The median study time of students in Class B is greater than students in Class A. The range of study time of students in Class A is less than students in Class B. The mean and median study time of students in Class A and Class B is equal.
Mathematics
1 answer:
serg [7]3 years ago
7 0
CLASS A
Mean: 4.8
Median: 5
Range: 6

CLASS B
Mean: 4
Median: 4
Range: 5

Therefore, the mean study time of students in Class B is less than that of students in Class A.
You might be interested in
(
larisa [96]
Idkidlidjidvgiyc tv xuztixjclotxitsyp
3 0
3 years ago
It is not 82 accidentally clicked it
Anit [1.1K]

Hi!

<u>Your answer is 52.</u>

To start off, let's start with some facts that will help us solve this:

<u><em></em></u>

<u><em>Supplementary angles</em></u> are two angles whose angle measures add up to 180 degrees. You can know that they are supplementary because they can be connected by a straight line.

<u><em>Triangles (all of them)</em></u> have angles that add up to 180 degrees.

We can start by using supplementary angles to solve. See where the angle of 67 degrees is? The one to the right of it is supplementary to it since they are on a straight line. That means their sum adds up to 180 degrees:

67 +?=180

?=113

That angle is 113 degrees.

Now, we have 2 out of 3 angles in the triangle. Since we know that triangles' angles add up to 180 degrees, we can make an equation:

15+113+x=180

128+x=180

x=52

Therefore, x is equal to 52.

7 0
2 years ago
Which graph represents the function f(x)=4 / x
REY [17]

Answer: The graph of rectangular hyperbola represents the function f(x)=4/x.

Explanation: given function, f(x)= 4/x.

The above function shows equation of rectangular hyperbola or equilateral hyberbola.(because, it is the type of xy=c^2.)

Thus, the asymptote  of the given function must be perpendicular.

Moreover, if x=2, y=2, if x=-2, y=-2

                 If x=4, y=1, if x=-4, y=-1

Therefore, this hyperbola is passing through points (2,2), (-2,-2), (4,1) and (-4,-1).


7 0
4 years ago
Read 2 more answers
The sum of digits in a two-digit number is 7. If the digits switch place you get a number bigger by 27. What's that number?
-Dominant- [34]

Step-by-step explanation:

the solution is found in the images above

4 0
3 years ago
Find the value of x<br> PIC IS BELOW
maks197457 [2]

:\implies \sf 3x = 27⁰

:\implies \sf x = \dfrac{27}{3}

:\implies \sf x = 9

c.) x = 9⁰, angle measure is 27⁰

5 0
3 years ago
Other questions:
  • How do you solve this7x+2y=180
    14·1 answer
  • Les cordonnées précises de Paris sont 2,34 degrés Est ;48,84 degrés Nord. Quelles sont les cordonnées géographiques du point dia
    11·1 answer
  • Ramon is having some friends over after a baseball game. Ramon's job is to make a vegetables dip. The ingredients for the recipe
    8·2 answers
  • Jake set up a study schedule. The plan called for him to study 1/4 hour, 5/8 hour and 1 hour on Monday Tuesday and Wednesday in
    13·2 answers
  • Function f(x) is positive, increasing and concave down on the closed interval [a, b]. The interval [a, b] is partitioned into 4
    11·1 answer
  • In your words, why do the radian measurements at 30 degrees and 210 degrees have the same denominator?
    14·1 answer
  • What is the median for the data in the table's second column?
    10·1 answer
  • Please Help Me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • WHAT IS QUARTER OF 74?
    8·2 answers
  • Finding the LCM of algebraic term and algebraic expressions.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!