What is the probability that an integer selected from the set of integers (20, 21, ...., 30) is a prime number?

Similar Questions

Solve the equation x$^2$ - 2x - 3 = 0...

The truth set of $8 + 2x - x^2$ = 0 is {p, q}. Evaluate p + q....

Given that x = 2 and y = -$\frac{1}{4}$, evaluate $\frac{x^2y - 2xy}{5}$...

The probability that a student passes a physics test is $\frac{2}{3}$. If he takes three physics t...

If x varies inversely as y and y varies directly as z, what is the relationship between x and z? ...

Factorize m$^3$ - m$^2$ + 2m - 2...

A bucket is 12 cm in diameter at the top, 8 cm in diameter at the bottom and 4 cm deep. Calculate it...

If p = [$\frac{Q(R - T)}{15}$]$^ \frac{1}{3}$, make T the subject of the relation...

Find the value of X if $cos x = \frac{5}{8}$ for $0^o\le X\le 180^o$...

Find the missing value in the table below \(\begin{array}{c|c} x & -4 & -3 & -2 & -...