If the mean and the variance of the data | Class | $$4$$–$$8$$ | $$8$$–$$12$$ | $$12$$–$$16$$ | $$16$$–$$20$$ | | --- | --- | --- | --- | --- | | Frequency | $$3$$ | $$\lambda$$ | $$4$$ | $$7$$ | are $$\mu$$ and $$19$$ respectively, then the value of $$\lambda + \mu$$ is

If the mean and the variance of the data | Class | 4–8 | 8–12 | 1… | JEE Main 2026 Mathematics PYQ

MCQMediumJEE Main 2026 · 23 January, Shift 2Measures of Central Tendency

If the mean and the variance of the data

Class	$4$ – $8$	$8$ – $12$	$12$ – $16$	$16$ – $20$
Frequency	$3$	$\lambda$	$4$	$7$

are $\mu$ and $19$ respectively, then the value of $\lambda + \mu$ is

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