Data Analysis

Data Analysis

Data Analysis

Grouped data:

Divide the range of data into classes of equal with

IQ (Binned)

Frequency

Percent

Valid Percent

Cumulative Percent

Valid

<= 90.00

4

6.7

6.7

6.7

91.00 - 101.00

7

11.7

11.7

18.3

102.00 - 112.00

15

25.0

25.0

43.3

113.00 - 123.00

15

25.0

25.0

68.3

124.00 - 134.00

13

21.7

21.7

90.0

135.00+

6

10.0

10.0

100.0

Total

60

100.0

100.0

Histogram

Find Mean, median and mode of the raw data:

Statistics

IQ

N

Valid

60

Missing

0

Mean

1.1493E2

Median

1.1400E2

Mode

124.00

Std. Deviation

1.47761E1

Variance

218.334

Minimum

81.00

Maximum

145.00

Find Mean median and mode of the group data:

Statistics

IQ (Binned)

N

Valid

60

Missing

0

Mean

3.73

Median

4.00

Mode

3a

Std. Deviation

1.376

Variance

1.894

Minimum

1

Maximum

6

Percentiles

25

3.00

50

4.00

75

5.00

The overall pattern:

From the histogram it can be found out it has been distributed negatively. negative skew can be defined in this way that the left tail is longer than the right tail.

Quartile:

Statistics

IQ

N

Valid

60

Missing

0

Percentiles

25

1.0350E2

50

1.1400E2

75

1.2475E2

Find standard deviation and find z score for x=110 and x=135

It has been found out that mean in ...