The table shows the distribution of goals scored by 25 te...
The table shows the distribution of goals scored by 25 teams in a football competition. Calculate the probability that a team selected at randon scored either 4 or 7 goals.
\(\frac{9}{25}\)
\(\frac{1}{5}\)
\(\frac{6}{25}\)
\(\frac{2}{5}\)
Correct answer is A
Prob. (team scored 4 goals) = Prob. (team scored 7 goals) = \(\frac{3}{25}\)
Hence, probability that a team selected at random scored either 4 or 7 goals;
= \(\frac{6}{25} + \frac{3}{25}\)
= \(\frac{9}{25}\)
Similar Questions
If log7.5 = 0.8751, evaluate 2 log75 + log750 ...
Evaluate ut - \(\frac{1}{2}\)ft2 when t = 5, u = -20 and f = 10...
Solve the following equation (3x - 2)(5x - 4) = (3x - 2)2...
Find the length of a chord which subtends an angle of 90° at the centre of a circle whose radius...
Find the square root of 170 - 20\(\sqrt{30}\)...
Subtract (-y + 3x + 5z) from (4y - x - 2z)...
In the diagram above, ML//PQ and NP//QR, if ∠LMN = 40° and ∠MNP = 55°. Find &an...
In the diagram, QPS = SPR, PR = 9cm. PQ = 4cm and QS = 3cm, find SR. ...