Answer:
10
Step-by-step explanation:
X = 10.7
Answer:
49 red marbles
Step-by-step explanation:
There is a bag with only red marbles and blue marbles.
We are told in the question that:
The probability of randomly choosing a blue marble is 2/9 . There are 63 marbles in total in the bag
Hence: since
P(Blue marbles) = 2/9
Hence,
The number of blue marbles = 63 ÷ 9
= 7
Hence:
2 × 7/9 × 7 = 14/63
Hence, the number of blue marbles = 14 blue marbles
The number of red marbles bus calculated as:
63 - 14 blue marbles
= 49 red marbles
Answer: The median is 30.
1.) Line up each number in numerical order based on the data set.
- 27, 28, 28, 29, 29, 29, 30, 30, 30, 31, 31, 31, 33, 34.
2.) Cross out the numbers from inside out. (Find the middle number.)
- Because the data set has an even amount of numbers, you are left with 2 middle numbers. (30 & 30)
- In this case, you add the numbers together (30 + 30) and divide them by 2. (60/2)
- You end with the result of 30, therefore your answer (the median) is 30.