Answer:
(a) The correct option is (A).
(b) The correct option is (B).
Step-by-step explanation:
Nam collected the data for the distance traveled by all the cars in his car lot.
(a)
A histogram is a bar graph representing the distribution of a random variable. The height of the bars of the histogram represents the frequency for a specific interval.
If Nam wants to know how many vehicles had driven more than 200,000 km, the histogram would be the best display of this data. This is because the histogram shows the frequency for various interval values.
The correct option is (A).
(b)
A boxplot, also known as a box and whisker plot is a method to demonstrate the distribution of a data-set based on the following 5 number summary,
- Minimum (shown at the bottom of the chart)
- First Quartile (shown by the bottom line of the box)
- Median (or the second quartile) (shown as a line in the center of the box)
- Third Quartile (shown by the top line of the box)
- Maximum (shown at the top of the chart).
So, if Nam wants to find whether the median distance was approximately 140,000 km, a box plot would be a better choice. This is because the box plot represents the median of the data by a line within the box.
The correct option is (B).
Answer:
The answer is C!
Step-by-step explanation:
I just took this on a p e x and this is the answer because it would be the most random I believe?
Answer:
3a. yes
3b. y= 75x
3c. 600 mi
3d. 10 inches
Step-by-step explanation:
3a: if you divide the y by the x, you'd get 75 everytime, meaning it's proportional.
3b: y would equal the amount of inches multiplied by 75, so y=75x
3c: you can use the equation and substitute the x for 8, so y=75(8), giving you 600 miles
3d: you can also use the equation in reverse, if the actual miles is 750, then this is your y, so it would look like 750=75x and to solve you'd divide, 750/75, giving you 10 inches
Answer:
56 students
Step-by-step explanation:
<u>Given information:</u>
• 448 students total
• of 448 participate in after-school activities
• of those get home after 7 pm
<u><em>To find how many students is </em></u><u><em> of those who participate in after-school activities, you first need to find the exact number of how many participate in after school activities:</em></u>
<u>The amount of students who participate in after-school activities is </u><u> the total number of students. So, multiply 448 × </u><u>:</u>
448 × Multiply.
Simplify into a whole number.
1344 ÷ 8 Divide.
168
of the total students is 168 students.
<u>To find the amount of students that do not get home until after 7 pm, multiply 168 by </u><u>:</u>
168 × Multiply.
Simplify into a whole number.
168 ÷ 3 Divide.
56
The amount of students that participate in after-school activities and get home after 7 pm is 56 students.
Answer:
For value of x
x + (2x + 7) + (x - 12 ) = 131
For y
y = 2x + 7
For z
z = x -12
Step-by-step explanation:
Let three numbers be
x , y and z
Now according to first condition
x + y +z = 131 .......(i)
According to other condition
The second number i.e. y is 7 more then twice of first
which will be
y = 2x + 7 ................(ii)
According to last condition
3rd number i.e. z is 12 less then first which is
z = x - 12 ..................(iii)
As we have got The value of y and z from equation (ii) and (iii) respectively we can find the value of x by substituting these values in equation (i)
Now substituting values of x and y in equation (i) gives us
x + (2x + 7) + (x - 12 ) = 131
From this equation we can find the value of x and which could be substituted to the equation (ii) to find the value of y and for value of z we can substitute it to equation (iii)