Download App

PART 2 : DIFFERENTIATION — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsPART 2 : DIFFERENTIATION3 Marks
Question
$y=\left(x^2-3 x+5\right)-(7 x+4)$
✓

Answer

$21 x^2-34 x+23$

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 "3 Marks Each" from PART 2 : DIFFERENTIATION→PART 2 : DIFFERENTIATION — all question types→Statistics STD 12 Commerce question papers→Gujarat Board STD 12 Commerce question papers→Gujarat Board question paper generator→

Similar questions

Fit a linear equation from the following data for variable $(y)$ of a time series: $n = 4, \sum y = 270, \sum ty = 734$
→
One joint family has $3$ sons and $2$ daughters whereas the other joint family has $2$ sons and $4$ daughters. One joint family is selected from two joint families and a child is randomly selected from that family. Find the probability that the selected child is a girl.
→
The probability that a person gets a prize in a certain lottery is $0.003 .1500$ persons have bought the tickets of this lottery. Find the mean and variance of number of persons getting a prize in the lottery
→
The probability that a person living in a city is a non-vegetarian is $0.20 $. Find the probability of at the most two persons out of $6$ persons randomly selected from the city is non-vegetarian.
→
A problem in Mathematics is given to Tania, Kathan and Kirti to solve. The probabilities of them solving the problem correctly are $\frac{2}{3}, \frac{3}{4}$ and $\frac{1}{2}$ respectively. Find the probability that the problem is solved correctly.
→
The coefficient of rank correlation between two related variables for $8$ pairs is $0.6$. Later on, it was found that one of the difference of ranks was taken as $-3$ instead of $5 .$ Find the correct rank correlation coefficient.
→
The demand function is $p=50-4 x$. Find elasticity of demand at $x=10$.
→
Year201620172018201920202021
Average Monthly Wages ₹15,00018,00019,00020,00022,00025,000
Cost of living Index Number
(Base Year 2014)		120180205220235260
→
In the production of air-coolers, the probability that any air-cooler is defective is $0.2$. For a lot of $200$ air-coolers find the mean. variance and standard deviation of the number o defective aircoolers.
→
The weight of randomly selected $500$ adult persons from a region of a city follows normal distribution. The average weight of these persons is $55 \ kg$ and Its standard deviation is $7 \ kg.$
$(i)$ Estimate the number of persons having weight between $41\ kg$ to $62 \ kg.$
$(ii)$ Estimate the number of persons having weight less than $41 \ kg.$
→