A fair die is tossed twice what is the probability of&nbs...
A fair die is tossed twice what is the probability of get a sum of at least 10.
\(\frac{5}{36}\)
\(\frac{2}{3}\)
\(\frac{5}{18}\)
\(\frac{1}{6}\)
Correct answer is D
\(\begin{array}{c|c}
& 1 & 2 & 3 & 4 & 5 & 6 \\
\hline
1 & 1,1 & 1,2 & 1,3 & 1,4 & 1,5 & 1,6 \\ \hline 2 & 2,1 & 2,2 & 2,3 & 2,4 & 2,5 & 2,6 \\ \hline 3 & 3,1 & 3,2 & 3,3 & 3,4 & 3,5 & 3,6 \\ \hline 4 & 4,1 & 4,2 & 4,3 & 4,4 & 4,5 & 4,6 \\ 5 & 5,1 & 5,2 & 5,3 & 5,4 & 5,5 & 5,6 \\ \hline 6 & 6,1 & 6,2 & 6,3 & 6,4 & 6,5 & 6,6\end{array}\)
From the table above, event space, n(E) = 6
sample space, n(S) = 36
Hence, probability sum of scores is at least 10, is;
\(\frac{n(E)}{n(S)}\)
= \(\frac{6}{36}\)
= \(\frac{1}{6}\)
What must be added to x2 - 3x to make it a perfect square? ...
If x varies inversely as y and y varies directly as z, what is the relationship between x and z? ...
In a triangle XYZ, < YXZ = 44° and < XYZ = 112°. Calculate the acute angle b...
The area of a circle is 38.5cm2. Find its diameter [take \(\pi = \frac{22}{7}\)]...
In the diagram PQRS is a circle, |PT| = |QT| and ∠QPT = 70o what is the size of ∠PRS?...