Jamb Mathematics Past Questions For Year 2010
Question 46
If three unbiased coins are tossed, find the probability that they are all heads
- A. \(\frac{1}{2}\)
- B. \(\frac{1}{3}\)
- C. \(\frac{1}{9}\)
- D. \(\frac{1}{8}\)
Question 47
Find the standard deviation of 2, 3, 5 and 6
- A. √6
- B. √10
- C. √\(\frac{2}{5}\)
- D. √\(\frac{5}{2}\)
Question 48
W is directly proportional to U. If W = 5 when U = 3, find U when W = \(\frac{2}{7}\)
- A. \(\frac{6}{35}\)
- B. \(\frac{10}{21}\)
- C. \(\frac{21}{10}\)
- D. \(\frac{35}{6}\)
Question 49
Determine the value of x for which \((x^2 - 1)\)>0
- A. x < -1 or x > 1
- B. -1 < x < 1
- C. x > 0
- D. x < -1
