Download App

INDEX NUMBER — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsINDEX NUMBER2 Marks
Question
If $\mathrm{L}_{\mathrm{L}}=80$ and $\mathrm{I}_F=100$ find $\mathrm{I}_p$.
✓

Answer

$ \text { Here, } I_L=80 ; I_F=100$
$I_F=\sqrt{I_L \times I_P}$
$\therefore 100=\sqrt{80 \times \mathrm{I}_P}$
$\therefore(100)^2=80 \times I_P$
$\therefore 10,000=80 \times \mathrm{I}_P$
$\therefore I_P=\frac{10,000}{80}$
$\therefore I_P=125 $

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Each" from INDEX NUMBER→INDEX NUMBER — all question types→Statistics STD 12 Commerce question papers→Gujarat Board STD 12 Commerce question papers→Gujarat Board question paper generator→

Similar questions

Find the coefficient of correlation from the following: $n=10, \sum(x-\bar{x})(y-\bar{y})=120, \sum(x-\bar{x})^{2}=90, S_{y}=2.5$,
→
Using the following details fit a trend line:$n-6, \bar{y}-1020, \sum t y-21840$
→
For a binomial distribution with $3 n=20 p=15$, find mean and standard deviation of this distribution.
→
Find the value of $r$ if $\operatorname{Cov}(x, y)=120, S_x=12$ and $S y=15$.
→
Express $(-5.05,-4.95)$ in the modulus form.
→
If the regression line of $Y$ on $X$ is $\hat{y}=12-1.5 x$ and the mean of $X$ is 6 , find the mean of $Y$.
→
If $n=8, s_y=10, \Sigma(x-\bar{x})(y-\bar{y})=-240$ and $\Sigma(x-\bar{x})^2=200$, find the value of $r$.
→
Express the interval form $(-8.75, -7.25)$ in neighbourhood form.
→
Find the correlation coefficient from the following data for $15$ observations of two random variables $X$ and $Y . \quad \Sigma(x-\bar{x})(y-\bar{y})=-60, \quad \Sigma(x-\bar{x})^2=100$ and $\Sigma(y-\bar{y})^2=64$
→
As compared to base year the percentage increase in the price of current year is $20 \%$, while increase in the income is $25 \%$. Find the percentage increase in the real income.
→