Probability
The probability that a person in a particular
class is left-handed is : From a class of
15 evening women and 5 men a person is chosen at
random. Assuming that 'left-handedness' is
independent of the sex of a person, find the
probability that the person chosen is a a man man or or is
left-handed.
class is left-handed is : From a class of
15 evening women and 5 men a person is chosen at
random. Assuming that 'left-handedness' is
independent of the sex of a person, find the
probability that the person chosen is a a man man or or is
left-handed.
Original post by BundhooRadhika
The probability that a person in a particular
class is left-handed is : From a class of
15 evening women and 5 men a person is chosen at
random. Assuming that 'left-handedness' is
independent of the sex of a person, find the
probability that the person chosen is a a man man or or is
left-handed.
class is left-handed is : From a class of
15 evening women and 5 men a person is chosen at
random. Assuming that 'left-handedness' is
independent of the sex of a person, find the
probability that the person chosen is a a man man or or is
left-handed.
Have you drawn out a probability tree? There is a good explanation here. Once you have that tree, you need to identify the branches which meet the "person is a man or person is left-handed" criteria, and then sum the probabilities at the end of each branch.
Original post by BundhooRadhika
The probability that a person in a particular
class is left-handed is : From a class of
15 evening women and 5 men a person is chosen at
random. Assuming that 'left-handedness' is
independent of the sex of a person, find the
probability that the person chosen is a a man man or or is
left-handed.
class is left-handed is : From a class of
15 evening women and 5 men a person is chosen at
random. Assuming that 'left-handedness' is
independent of the sex of a person, find the
probability that the person chosen is a a man man or or is
left-handed.
I would suggest that you must watch video from GCSE MATHS TUTOR for all topics that you don't understand.
Here is link to YT video for probability topic and it is 30 mins long.
https://youtu.be/h78FV6dRETI?si=NiVP5PXsI2oL-Oyi
I hope you will find this helpful.
Many thanks,
Quick Reply
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