HURRY! A math teacher recorded the color of students eyes and hair. This two-way frequency table shows the results of the survey
.
2 answers:
You might be interested in
1.) First plug in the values for m and A:
-->
Isolate b:
b = 1999
So your answer is the first option.
2.) Admission costs $5.25, so even if you don't go on any rides, you will still have to pay $5.25. This means that for this problem, 5.25 will be the b value. If each ride costs $2.50, then this means it is $2.50x for the cost of x rides. The total cost will then be .
Total number of chips = 4+ 6 = 10
Number of white chips = 4
Probability of picking a white chip =
This white chip is not replaced back into the bag. This will reduce the number of white chips in the bag by 1 and reduce the total number of chips in the bag by 1.
So, now the total number of chips in the bag = 3 + 6 = 9
Number of white chips in the bag = 3
Probability of picking a white chip =
Thus, the probability of picking two white chips will be =
Therefore, option B gives the correct answer.
Number of white chips = 4
Probability of picking a white chip =
This white chip is not replaced back into the bag. This will reduce the number of white chips in the bag by 1 and reduce the total number of chips in the bag by 1.
So, now the total number of chips in the bag = 3 + 6 = 9
Number of white chips in the bag = 3
Probability of picking a white chip =
Thus, the probability of picking two white chips will be =
Therefore, option B gives the correct answer.