| 2024-01-21 | Let \( A \) and \( B \) be two events such that \( P(A)=7 / 20, P(B) \) \( =9 / 20, P(A \cup B)=.... |
| 2024-01-21 | Consider the following frequency distribution:
\begin{tabular}{lllllll}
\( \boldsymbol{X} \) & 2.... |
| 2024-01-21 | The mean of four observations is ' 4 ' and their variance is 3.5 . If two these observations are.... |
| 2024-01-21 | If a variable takes values \( 0,1,2, \ldots, n \) with frequencies proportional to \( q^{n},{ }^.... |
| 2024-01-21 | Let \( x_{1}, x_{2}, \ldots, x_{n} \) be ' \( n \) ' observations. Let \( w_{i}=l x_{i}+k \)
for.... |
| 2024-01-21 | Find the mode of given data:
\( 6,3,7,5,6,7,8,9,10,7,5,6,3,7,2,6,1,6,5,7,8 \), 7, 6.... |
| 2024-01-21 | A sample of 90 values has mean 55 and standard deviation 3. A second sample of 110 values has me.... |
| 2024-01-21 | The mean marks of 120 students is 20 . If was later discovered that two marks were wrongly taken.... |
| 2024-01-21 | If standard deviation of a set of observation is 8 and if each observation is divided by ' -2 ' .... |
| 2024-01-21 | If the standard deviation of ' \( n \) ' observations \( x_{1}, x_{2}, \ldots \), \( x_{n} \) is.... |
| 2024-01-21 | The mean and median of the following numbers in increasing order \( 15,22,28, x, 40,42,51, y \) .... |
| 2024-01-21 | The arithmetic mean of \( a, a+d, a+2 d \ldots, a+2 n d \) is.... |
| 2024-01-21 | The mean height of 25 male workers in a factory is \( 161 \mathrm{cms} \), the mean height of 35.... |
| 2024-01-21 | Find the median of the given data:
\( 10,3,7,11,14,6,5,12 \).... |
| 2024-01-21 | The arithmetic mean of the series \( { }^{n} C_{0},{ }^{n} C_{1},{ }^{n} C_{2}, \ldots \), \( { .... |
| 2024-01-21 | The mean of first 30 even natural numbers is.... |
| 2024-01-21 | The mean of the marks obtained by the groups of students, consisting of 40 and 60 students are '.... |
| 2024-01-21 | Match the items of Column I with those of Column
II.
\begin{tabular}{|l|l|l|l|}
\hline \multicol.... |
| 2024-01-21 | Which of following is true?.... |
| 2024-01-21 | The mean for the following data:
\( 8,5,9,13,5,12,6,14 \) is
(1) 8
(2) 9
(3) 10
(4) 11
Go to Set.... |
| 2024-01-21 | Number of 'True' values in the truth table of \( \sim p \vee \sim q \) is (are).... |
0