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MATH / I have a spinner that lands on 1 with a probability of (1)/(10), 2 with a probability of (2)/(10), 3 with a probability of (3)/(10), and 4 with a probability of (4)/(10). If Phil a…

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problem

I have a spinner that lands on 1 with a probability of 110\frac{1}{10}, 2 with a probability of 210\frac{2}{10}, 3 with a probability of 310\frac{3}{10}, and 4 with a probability of 410\frac{4}{10}. If Phil and Sarah both spin the spinner, what is the probability that they get the same number?
Plain-text mathematical notation (without MathML)
I have a spinner that lands on 1 with a probability of (1)/(10), 2 with a probability of (2)/(10), 3 with a probability of (3)/(10), and 4 with a probability of (4)/(10). If Phil and Sarah both spin the spinner, what is the probability that they get the same number?
Original LaTeX notation
I have a spinner that lands on 1 with a probability of $\frac{1}{10}$, 2 with a probability of $\frac{2}{10}$, 3 with a probability of $\frac{3}{10}$, and 4 with a probability of $\frac{4}{10}$. If Phil and Sarah both spin the spinner, what is the probability that they get the same number?

level

Level 3

type

Counting & Probability

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