Question

18.
Data of height of class 10h students was collected and organized as the following
frequency distribution table .observe the median class and modal class.
Height
140 - 145 145- 150 150 155 155- 160 160 165 165- 170
(in cm)
Frequency
15
25
30
15
10
What is the upper limit of median class?
(a) 150 cm
(b) 160 cm
(c) 155 cm
(d) 165 cm
What is the value of median height?
(a) 145.67 cm (b) 157.67 cm
(c) 155.83 cm
(d) 159.67 cm
What is the lower limit of modal class?
(a) 150 cm
(b) 160 cm
(c) 155 cm
(d) 165 cm
(iv)
What is the value of modal height?
(a) 155.25 cm
(b) 156.25 cm
(c) 157.25 cm
(d) 159.25 cm
What is the value of mean height?
(a) 155.625 cm (b) 156.250 cm
(c) 158.500 cm
(d) 159.275 cm​

Answer 1

Answer:

160cm

145•67

160 cm

155•125cm

158•500 cm