A sample of seventh and eighth grade students were asked how many minutes they spent online last night. The results were recorde
d in the box-and-whisker plots shown. What can you conclude?
A.
Eighth grade students have more variation in the amount of time spent online last night.
B.
Seventh grade students have more variation in the amount of time spent online last night.
C.
The sample size of seventh grade students is less than the sample size of eighth grade students.
D.
The sample sizes are equal.
A.
Eighth grade students have more variation in the amount of time spent online last night.
B.
Seventh grade students have more variation in the amount of time spent online last night.
C.
The sample size of seventh grade students is less than the sample size of eighth grade students.
D.
The sample sizes are equal.
1 answer:
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Answer:
B. m = , y-int = 3
Step-by-step explanation:
To find the slope of the line, we need to plot two points
(2, 6) (-2, 0)
m = slope
Then use the Slope-Formula to Solve for the slope
m =
m =
m =
m =
m =
The Slope is
The y-intercept is 3 because the line is going 3 units upwards on y axis!
Equation: y = 3/2x + 3
Slope: 3/2
y-intercept: 3
Answer:
miles [or, 9.2 miles]
Step-by-step explanation:
<u>Complete Question:</u>
Christine runs 10 miles in 75 minutes. At the same rate, how many miles would she ru n in 69 minutes?
<u>Solution:</u>
We need to find the unit rate first and then find our answer. To get unit rate, we need to know the number of miles she runs in "1 minute". So, we will divide number of miles by number of minutes, that is given. Hence:
That means in 1 minute, Christine runs 2/15th of a mile.
Now, we want to know how many miles she will run in 69 minutes. We simply multiply unit rate (2/15) by the number of minutes (which is 69). Thus we have:
In decimal, doing division, that is 9.2 miles