WorksheetsNormal distribution( GCSE)
Total questions: 13
Worksheet time: 31mins
Name
Class
Date
1.
What shape is a normal distribution curve?
a)
Half curve
b)
Round curve
c)
Bell curve
d)
Square curve
2.
Find the area of the shaded region.
a)
16%
b)
84%
c)
68%
d)
34%
3.
What percent of a normal distribution lies outside of ±3 standard deviations?
a)
99.7%
b)
.15%
c)
.3%
d)
100%
4.
Where can we locate the mean in the normal curve?
a)
to the left portion
b)
to the right portion
c)
at the center
d)
on the z - axis
5.
Adam's standard deviation on a test is +2.5. What does this mean?
a)
He'd better start studying.
b)
He did better than EVERYONE.
c)
He scored 2.5 standard deviations above the average.
d)
He did terrible.
6.
This data is normally distributed. What percent of the data is in the shaded region?
a)
68%
b)
95%
c)
99.7%
d)
50%
7.
This data is normally distributed. What percent of the data is in the shaded region?
a)
68%
b)
95%
c)
99.7%
d)
50%
8.
Which curve has the greater standard deviation?
a)
Red
b)
Black
c)
Blue
9.
What does this symbol represent?
a)
Mean
b)
Median
c)
Mode
d)
Standard Deviation
10.
What does this symbol represent?
a)
Standard Deviation
b)
Variance
c)
Mean Absolute Deviation
d)
Sigma
11.
68% of the data lies within:
a)
3 Standard Deviations of the Mean
b)
2 Standard Deviations of the Mean
c)
1 Standard Deviation of the Mean
12.
This data is:
a)
Approximately normally distributed
b)
Not normally distributed
13.
This data is normally distributed. What percent of the data is in the shaded region?
a)
5%
b)
95%
c)
2.5%
d)
50%
100 %
