The masses of a particular type of chocolates are normally distributed with mean $12.5$ g. The pro

Question

The masses of a particular type of chocolates are normally distributed with mean $12.5$ g. The probability that a randomly chosen chocolate has mass more than $13.5$ g is $0.1$. Find the variance of this distribution.[3] The masses of a particular type of sweets have mean $2.94$ g and variance $1.62$ $\mathrm{g}^2$. Explain why it may not be appropriate for the mass of a randomly chosen sweet to be modelled by a normal distribution.[1]

Accepted Answer

(i)$\sigma^2$=0.609

2024 TMJC H1 Q6

2024 TMJC H1 Q6