A K Upadhyay and S Upadhyay Solutions for Chapter: Probability, Exercise 3: MULTIPLE CHOICE QUESTIONS

Which of the following cannot be the empirical probability of an event?

The probability of guessing the correct answer to a certain question is $\frac{x}{2}$. If the probability of not guessing the correct answer to the question is $\frac{2}{3}$, then $x$ is

If $A$ and $B$ are the only two outcomes of an event and $P\left(A\right)=0.32$ then value of $P\left(B\right)$ would be:

In a survey of $350$ women, $132$ were found to be working. If a woman is selected at random, the probability that she is not working is:

A card is drawn from a well shuffled pack of cards. The probability of obtaining a face card is:

Two coins are tossed $1000$ times and the outcomes are recorded as below:

Based on this information, the probability for at most one head is.

$90$ bulbs are selected at random from a lot and their life (in $\mathrm{hrs}$) is recorded in the form of a frequency table given below:

One bulb is selected at random from the lot. The probability that its life is $1150$ hours is

A bag contains $20$ balls out of which '$x$' are black. If $10$ more black balls are put in the box. The probability of drawing a black ball is double of what it was before. The value of $x$ is