To know the opinion of the students about the subject statistics,a survey of $200$ students was conducted. The data is recorded in the following table.
Opinion Number of students
Like $135$
Dislike $65$

Find the probability that a student chosen at random:
$(i)$ likes statistics,$(ii)$ does not like it.

  • A
    $\frac{27}{40}, \frac{13}{40}$
  • B
    $\frac{29}{50}, \frac{13}{50}$
  • C
    $\frac{27}{80}, \frac{13}{80}$
  • D
    $\frac{27}{95}, \frac{13}{36}$

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Similar Questions

Fifty seeds were selected at random from each of $5$ bags of seeds,and were kept under standardised conditions favourable to germination. After $20$ days,the number of seeds which had germinated in each collection were counted and recorded as follows:
Bag $1$ $2$ $3$ $4$ $5$
Number of seeds germinated $40$ $48$ $42$ $39$ $41$

What is the probability of germination of
$(i)$ more than $40$ seeds in a bag?
$(ii)$ $49$ seeds in a bag?
$(iii)$ more than $35$ seeds in a bag?

Note the frequency of two-wheelers, three-wheelers, and four-wheelers passing by your school gate during a specific time interval. Calculate the probability that any one vehicle chosen from the total vehicles observed is a two-wheeler.

Find the probability that a student of the class was born in August.

The record of a weather station shows that out of the past $250$ consecutive days,its weather forecasts were correct $175$ times.
$(i)$ What is the probability that on a given day it was correct?
$(ii)$ What is the probability that it was not correct on a given day?

The following frequency distribution table shows the concentration of sulphur dioxide $(SO_2)$ in the air in parts per million $(ppm)$ of a certain city for $30$ days. Using this table,find the probability of the concentration of sulphur dioxide being in the interval $0.12 - 0.16$ on any of these days.
Concentration of $SO_2$ (in $ppm$)Number of days (frequency)
$0.00-0.04$$4$
$0.04-0.08$$9$
$0.08-0.12$$9$
$0.12-0.16$$2$
$0.16-0.20$$4$
$0.20-0.24$$2$
Total$30$

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