The mean and the range of the set of numbers 1.20, 1.00, 0.90, 1.40, 0.80, 1.20, and 1.10 are m and r respectively. Find m + r
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1995
The pie chart above shows the distribution of students in a secondary school class. If 30 students offered French, how many offered CRK?
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1995
The variance of the scores 1, 2, 3, 4, 5 is
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1995
For what value of x is the tangent to the curve y = x\(^2\) - 4x + 3 parallel to the x-axis?
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1995
Find the area bounded by the curve y = 3x\(^2\) - 2x + 1, the coordinates x = 1 and x = 3 and the x-axis
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1995
The 4th term of an A.P is 13 while the 10th term is 31. Find the 21st term
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1995
If \(x – 1\) and \(x + 1\) are both factors of the equation \(x^3 + px^2 + qx + 6 = 0\), evaluate \(p\) and \(q\)
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1995
Four members of a social first eleven cricket team are also members of the first fourteen rugby team. How many boys play for at least one of the two teams?
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1995
The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures.
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1995
Convert 3.1415926 to 5 decimal places
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1995
In the diagram, find PQ if the area of triangle PQR is 35cm2
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1995
In the diagram, the base diameter is 14cm while the height is 12cm. Calculate the total surface area if the cylinder has both a base and a top.[\(\pi \frac{22}{7}\)]
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1995
Determine the value of x in the figure.
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1995
Use the graph of the curve y = f(x)to solve the inequality f(x) \(\leq\) 0
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1995
A die has four of it's faces coloured white and the remaining two coloured black. What is the probability that when the die is thrown two consecutive time, the top face will be white in both cases?
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1995
Let p be a probability function on set S, where S = (a1, a2, a3, a4). Find P(a1) if P(a2) = \(\frac{1}{3}\), p(a3) = \(\frac{1}{6}\) and p(a4) = \(\frac{1}{5}\)
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1995
\(\begin{array}{c|c} \text{Class Interval} & Frequency & \text{Class boundaries} & \text{Class Mid-point} \\ \hline 1.5 - 1.9 & 2 & 1.45 - 1.95 & 1.7\\ 2.0 - 2.4 & 21 & 1.95 - 2.45 & 2…
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1995
\(\begin{array}{c|c} \text{Class Interval} & Frequency & \text{Class boundaries} & \text{Class Mid-point} \\ \hline 1.5 - 1.9 & 2 & 1.45 - 1.95 & 1.7\\ 2.0 - 2.4 & 21 & 1.95 - 2.45 & 2…
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1995
The variance of the scores 1, 2, 3, 4, 5 is
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1995
\(\begin{array}{c|c} class& 1 - 3 & 4 - 6 & 7 - 9\\ \hline Frequency & 5 & 8 & 5\end{array}\)Find the standard deviation of the data using the table above