The table above shows the scores of a group of 40 student...
The table above shows the scores of a group of 40 students in a physics test
What is the mean of the distribution?
4.2
4.5
4.8
5.0
5.2
Correct answer is C
x | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Total |
f | 2 | 3 | 6 | 7 | 9 | 6 | 2 | 2 | 3 | 40 |
fx | 2 | 6 | 18 | 28 | 45 | 36 | 14 | 16 | 27 | 192 |
Mean = ∑fx∑f
= 19240
= 4.8
In the figure, △ ABC are in adjacent planes. AB = AC = 5cm, BC = 6cm and o then AE ...
Using the histogram, what is the median class? ...
In the figure, PT is tangent to the circle at U and QU/RS if TUR = 35º and SRU = 50º&...
The sides of two cubes are in the ratio 2:5. What is the ratio of their volumes? ...
The quadratic equation whose roots are 1 - √13 and 1 + √13 is?...
Solve for a positive number x such that 2(x3−x2−2x)=1...
If N225.00 yields N27.00 in x years simple interest at the rate of 4% per annum, find x. ...
The diagonal of a square is 60 cm. Calculate its peremeter ...