I need help in a timed quiz.
1 answer:
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Answer:
1. 4 categories are shown in the rows.
2. 2 categories are shown in the columns.
3. The number of 14 year olds that consider winter their favorite season is 12.
4. Total number of people polled is 82.
Step-by-step explanation:
The question is to test the ability of a student to group data using a frequency table accurately, and make appropriate deductions from it. Consider the attachment for the accurate table required to answer the given questions.
If the given information is grouped as required, thus the answers to the questions are:
i. 4 categories are shown in the rows.
ii. 2 categories are shown in the columns.
iii. The number of 14 year olds that considers winter their favorite season is 12.
iv. Total number of people polled is 82.
Answer:
0.72
Step-by-step explanation:
Given :Two of the cards of an ordinary deck of 52 cards are lost.
To Find : What is the probability that a random card drawn from this (defective) deck is a spade?
Solution:
Total number of cards = 52
2 cards are lost
Remaining cards = 50
When no spade card is lost
So, No. of spade cards = 13
Total cards = 50
So, probability of getting spade =
When 1 spade card is lost
So, No. of spade cards = 12
Total cards = 50
So, probability of getting spade =
When 2 spade cards are lost
So, No. of spade cards = 11
Total cards = 50
So, probability of getting spade =
So, The he probability that a random card drawn from this (defective) deck is a spade =
=
= [tex]0.72/tex]
Hence the probability that a random card drawn from this (defective) deck is a spade is 0.72