(i)[3]
$8\%$ of carrots are shorter than $c$ cm. Find the value of $c$.
(ii)[6]
Rebekah chooses $7$ carrots at random. Find the probability that at least $2$ of them have lengths between $15$ and $16$ cm.
Mathematics 9709 · AS & A Level · Continuous random variables
Continuous random variables — practice question
Carrot lengths of this type follow a normal distribution with mean $14.2$ cm and standard deviation $3.6$ cm.