The following frequency distribution shows the height of 50 students of a class, then find the u...
The following frequency distribution shows the height of 50 students of a class, then find the unknown entries.
\begin{tabular}{|c|c|c|}
\hline \( \begin{array}{c}\text { Class intervals } \\
\text { (Height in cm) }\end{array} \) & Frequency & \( \begin{array}{c}\text { Cumulative } \\
\text { frequency }\end{array} \) \\
\hline \( 150-155 \) & 12 & \( \mathrm{a} \) \\
\hline \( 155-160 \) & \( \mathrm{~b} \) & 25 \\
\hline \( 160-165 \) & 10 & \( \mathrm{c} \) \\
\hline \( 165-170 \) & \( \mathrm{~d} \) & 43 \\
\hline \( 170-175 \) & \( \mathrm{e} \) & 48 \\
\hline \( 175-180 \) & 2 & \( \mathrm{f} \) \\
\hline Total & \( \mathrm{g} \) & \\
\hline
\end{tabular}
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions
| 2023-07-14 | If the mean of frequency distribution is 8.1 and \( \sum \mathrm{f}_{\mathrm{i}} \mathrm{x}_{\ma... |
| 2023-07-14 | If the arithmetic mean of \( x, x+3, x+6, x+9 \) and \( \mathrm{x}+12 \) is 8 , then \( \mathrm{... |
| 2023-07-14 | The Median when it is given that mode and mean are 8 and 5 respectively, is: a. 8 b. 6 c. 4 d. 9 |
| 2023-07-14 | The abscissa of the point of intersection of the less than type and of the more than type cumula... |
| 2023-07-14 | If \( x_{i}^{\prime} s \) are the midpoints of the class intervals of grouped data \( \mathrm{f}... |
| 2023-07-14 | A group of 10 items has mean 6 , if the mean of 4 of these items is 7.5 then, find the mean of r... |
| 2023-07-14 | While computing mean of the grouped data, we assume that the frequencies are:
a. Evenly distribu... |
| 2023-07-14 | In the formula \( \bar{X}=a+\frac{\sum f_{i} d_{i}}{\sum f_{i}} \), for finding the mean of grou... |
| 2023-07-14 | Find the sum of the missing frequencies in the following frequency distribution if it is known t... |
| 2023-07-14 | If the mean of the following data be 9.2 , find the value of \( p \).
\begin{tabular}{|c|c|c|c|c... |
| 2023-07-14 | The following frequency distribution shows the height of 50 students of a class, then find the u... |
| 2023-07-14 | Find the mode of the following data : \[ 6,4,7,4,5,8,4,5,5,3,2,5 \] |
| 2023-07-14 | Find the mean of the following distribution:
\begin{tabular}{|c|c|c|c|c|c|}
\hline \( \mathbf{x}... |
| 2023-07-14 | The following data have been arranged in desending orders of magnitude \( 75,70,68, \mathrm{x}+2... |
| 2023-07-14 | The follcwing frequency distribution shows the marks obtained by 80 students in an examination. ... |
| 2023-07-14 | The mean of 20 observations was found to be 47 .
But later it was discovered that one observatio... |
| 2023-07-14 | The mean of 16 numbers is 8 . If 2 is added to every number, what will be the new mean? |
| 2023-07-14 | Find the median of \( 6,8,9,10,11,12 \) and 13 . |
| 2023-07-14 | The following table give the frequency distribution of married women by age at marriage:
\begin{... |
| 2023-07-14 | Find the sum of the deviations of the variate values \( 3,4,6,8,14 \) from their mean. |
| 2023-07-14 | If \( \mathrm{x}_{1}, \mathrm{x}_{2}, \ldots, \mathrm{x}_{\mathrm{n}} \) are \( \mathrm{n} \) va... |
0