The pie chart above shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many student offer Mathematics.
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2013
The bar chart above shows the allotment of time(in minutes) per week for selected subjects in a certain school. What is the total time allocated to the six subjects per week?
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2013
The value x in the figure given is
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2013
The graph is shown is correctly represented by
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2013
A basket contains 9 apples, 8 bananas and 7 oranges. A fruit is picked from the basket, find the probability that it is neither an apple nor an orange.
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2013
What is the probability that an integer x \((1 \leq x \leq 25)\) chosen at random is divisible by both 2 and 3?
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2013
In how many ways can 3 seats be occupied if 5 people are willing to sit?
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2013
In how many ways can a student select 2 subjects from 5 subjects?
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2013
\(\begin{array}{c|c} \text{Score} & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\ \hline \text{Frequency} & 1 & 0 & 7 & 5 & 2 & 3 & 1 & 1 \end{array}\)The table above s…
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2013
If the variance of 3+x, 6, 4, x and 7-x is 4 and the mean is 5, find the standard deviation
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2013
The mean of seven numbers is 10. If six of the numbers are 2, 4, 8, 14, 16 and 18, find the mode.
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2013
Find the mean of t + 2, 2t - 4, 3t + 2 and 2t.
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2013
The radius of a circle is increasing at the rate of 0.02cms-1. Find the rate at which the area is increasing when the radius of the circle is 7cm.
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2013
If y = (2x + 2)3, find \(\frac{\delta x}{\delta y}\)
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2013
If y = x sin x, find \(\frac{\delta y}{\delta x}\)
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2013
Find the inverse \(\begin{vmatrix} 5 & 3 \\ 6 & 4 \end{vmatrix}\)
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2013
If P = \(\begin{vmatrix} 5 & 3 \\ 2 & 1 \end{vmatrix}\) and Q = \(\begin{vmatrix} 4 & 2 \\ 3 & 5 \end{vmatrix}\), find 2P + Q
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2013
If a binary operation * is defined by x * y = x + 2y, find 2 * (3 * 4)
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2013
The nth term of the progression \(\frac{4}{2}\), \(\frac{7}{3}\), \(\frac{10}{4}\), \(\frac{13}{5}\) is ...
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2013
If the sum of the first two terms of a G.P. is 3, and the sum of the second and the third terms is -6, find the sum of the first term and the common ratio