Q.3980·Miscellaneous·2021·EasyWhat is the condition that f(x) = x^3 + x^2 + kx has no local extremum?View question
Q.3981·Miscellaneous·2021·EasyWhat is the area bounded by y = [x], the x-axis and the lines x = -1.5 and x = -1.8?View question
Q.3983·Miscellaneous·2021·EasyConsider the following relations for two events E and F: 1. P(E ∩ F) ≥ P(E) + P(F) − 1 2. P(E ∪ F) = P(E) + P(F) + P(E ∩ F) 3. P(E ∪ F) ≤ P(E) + P(F) Which of the above relations is/are correct?View question
Q.3984·Miscellaneous·2021·EasyIf P(A|B) < P(A), then which one of the following is correct?View question
Q.3985·Miscellaneous·2021·EasyWhen the measure of central tendency is available in the form of mean, which one of the following is the most reliable and accurate measure of variability?View question
Q.3986·Miscellaneous·2021·EasyA problem is given to three students A, B and C, whose probabilities of solving the problem independently are 1/2, 3/4 and p respectively. If the probability that the problem can be solved is 29/32, then what is the value of p?View question
Q.3987·Miscellaneous·2021·EasyIn a cricket match, a batsman hits a six 8 times out of 60 balls he plays. What is the probability that on a ball played he does not hit a six?View question
Q.3988·Miscellaneous·2021·EasyTwo regression lines are given as 3x − 4y + 8 = 0 and 4x − 3y − 1 = 0. Consider the following statements : 1. The regression line of y on x is y = (3/4)x + 2 . 2. The regression line of x on y is x = (3/4)y + 1/4 . Which of the above statements is/are correct?View question
Q.3989·Miscellaneous·2021·EasyTwo regression lines are given as 3x -4y+8=0 and 4x - 3y– 1= 0. Consider the following statements : 1. The coefficient of correlations r is 3/4. 2. The means of x and y are 3 and 4 respectively. Which of the above statements is/are correct?View question
Q.3990·Miscellaneous·2021·EasyThe marks obtained by 60 students in a certain subject out of 75 are given below : What is the mode?View question
Q.3991·Miscellaneous·2021·EasyFor the set of numbers x, x, x+2, x+3, x+10 where x is a natural number, which of the following is/are correct? 1. Mean > Mode 2. Median > Mean Select the correct answer using the code given below.View question
Q.3992·Miscellaneous·2021·EasyIf g is the geometric mean of 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, then which one of the following is correct?View question
Q.3993·Miscellaneous·2021·EasyIf the harmonic mean of 60 and x is 48, then what is the value of x ?View question
Q.3994·Miscellaneous·2021·EasyWhat is the mean deviation of the first 10 even natural numbers?View question
Q.3995·Miscellaneous·2021·Easy3-digit numbers are formed using the digits 1, 3, 7 without repetition of digits. A number is randomly selected. What is the probability that the number is divisible by 3?View question
Q.3996·Miscellaneous·2021·EasyIf A and B are two events such that P(not A) = 7/10, P(not B) = 3/10 and P(A|B) = 3/14, then what is P(B|A) equal to?View question