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
lozanna [386]
3 years ago
11

A recent survey determined the IQ score of a random selection of residents of Alaska. The accompanying relative frequency distri

bution table summarized the results.
Identify the class width for the given relative frequency distribution.

Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer:

The class width is 20

Step-by-step explanation:

In a frequency or a relative frequency distribution the class width is calculated as the difference between the lower or upper class limits of consecutive classes. A point to note is that all the categories or classes usually have the same class width.

We use the first two classes to calculate the class width by using their respective upper limits;

Class width = 89 - 69

Class width = 20

You might be interested in
The classes at the middle school want to raise money. The sixth grade runs a bake sale for 55 hours and makes $170$170. The seve
kvv77 [185]

The sixth grade makes 3.09 per hour

The seventh graders make 2.54 per hour

the eighth graders make 2.90 per hour

So the sixth graders make the most per hour. you can check this answer by taking the amount of money made and divide it by the time that it takes to raise the total amount of money raised by each class of students.

5 0
3 years ago
Help ASAP!!!! Math!!!!
Margarita [4]
1.02 = 1 + 0.02
n is 4 you can tell by the 4t = nt exponent
0.02 * 4 = 0.08 interest rate as decimal
B. 8% interest

A. 4th down from top

7 0
3 years ago
Danielle drives from her home to the store at an average speed of 40 miles per hour. She returns home along the same route at an
wolverine [178]

she drove 40 mph & 60 mph

60 +40 = 100

100/2 = 50

 so she drove an average of 50 mph

5 0
3 years ago
3 values greater than |-3.5|
pav-90 [236]

Answer:

6.5

Step-by-step explanation:

3.5 + 3

8 0
3 years ago
Read 2 more answers
What is the width of the rectangle shown below? <br>4x + 3 <br>A = 8x2 – 10x – 12
ozzi

Answer:

<h2><em>2x-4</em></h2>

Step-by-step explanation:

Area of a rectangle = Length * Width

Given parameters

Area A = 8x2 – 10x – 12

Length of the rectangle = 4x+3

Required

Width of the rectangle.

Substituting the given parameters into the formula

8x2 – 10x – 12  = (4x+3)*width

width = 8x2 – 10x – 12 /4x+3

S

Factorizing the numerator

8x² – 10x – 12

= 2(4x²-5x-6)

= 2(4x²-8x+3x-6)

= 2(4x(x-2)+3(x-2))

= 2(4x+3)(x-2)

Width = 2(4x+3)(x-2)/4x+3

Width = 2(x-2)

Width = 2x-4

<em>Hence the width of the rectangle is 2x-4</em>

8 0
3 years ago
Other questions:
  • 5. TEMPERATURES The table shows the low temperatures in degrees Fahrenheit for the past week
    10·1 answer
  • The Markdown of $18.99 to 25%
    7·2 answers
  • Find the gcf of 18a,20a,ang 6a <br>please show work
    5·2 answers
  • Cos (pi/11)+cos (3pi/11)+cos (5pi/11)+cos (7pi/11)+cos(9pi/11)
    13·1 answer
  • Jabir buys 2.74 pounds of dried pinto beans and 4.05 pounds of dried lima beans. What is the difference between the weights of t
    8·2 answers
  • The sum of two consecutive integers is no more than 209. What is the larger of the two integers?
    13·1 answer
  • Which distribution is likely to have a mean higher than the median?
    13·1 answer
  • What is another way to show 2 x 4/6
    13·2 answers
  • A local hamburger shop sold a combined total of 575 hamburgers and cheeseburgers on Saturday. There were 75 fewer cheeseburgers
    11·1 answer
  • Can someone please just tell me if I did this right? It’s the volume of a cone.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!