Question

Number 1to10 are written on ten Separate balls. The ball is kept in a box At random one ball is picked up. What is the probability of getting a number 7​

Answer 1

Step-by-step explanation:

Total balls =10

No. of outcomes=10

Numbers greater than 7 =8,9,10

so 3 numbers are greater than 7

so (i) P(no. greater than 7)=

\frac{number \: greater \: than \: 7}{total \: numbers}

totalnumbers

numbergreaterthan7

\huge\bold{ \frac{3}{10}}

10

3

One digit numbers = 1,2,3,4,5,6,7,8,9

outcomes=9

P(1 digit number )=

\huge \bold{\frac{9}{10} }

10

9