Question

Thirty students were surveyed about the number of siblings they have. Their results were recorded and placed on a card face down. (someone please answer this im putting 39 points on dis im desperate:,)

Outcome Frequency
1 6
2 12
3 9
4 or more 3


Determine P(4 or more) when picking a random card.
10%
60%
80%
90%

Answer 1

The probability of picking a card with "4 or more" siblings is 10%.

To calculate the probability, you need to add up the number of cards with "4 or more" siblings and divide by the total number of cards.

There are 30 cards in total, and 3 of them have "4 or more" siblings.

So, the probability of picking a card with "4 or more" siblings is:

P(4 or more) = 3/30 = 0.1 = 10%