Tag | Value |
---|---|
file | Probability_uva-expected-value-666-en_uva-expected-value-666-en |
name | uva-expected-value-666-en |
section | Probability/Elementary Probability/Random variables/Expected value |
type | num |
solution | 0.196 |
tolerance | 0 |
Type | Calculation |
Language | English |
Level | Statistical Literacy |
IRT-Difficulty | 3.52 |
p-value | 0.2228 |
You do a survey on birth weight. You make a distinction between boys and girls and for that you have the following data (in kg) of the children selected by random sampling)from from all babies born last year.
——— —— —— —— —— —— —— —— Boys 2.63 2.81 2.95 2.99 3.08 3.18 Girls 1.91 2.59 2.81 2.86 2.95 2.99 3.04 ——— —— —— —— —— —— —— ——
The correct answer is: 0.196