Dice, Marbles, Oh My!
Thinking Cap On!
Experimental Probability FTW!
100

Kylie rolled a number cube that has sides labeled 1 to 6. What is the probability that she rolled a 5?

凯莉掷了一个骰子,骰子的各个面上分别标有 1 到 6。她掷出 5 的概率是多少?

1/6

100

Isaac has a box of pencils. 3 are green, 11 are brown, 2 are yellow, and 5 are blue. If he selects a pencil at random, which color pencil would he be LEAST likely to select?

艾萨克有一盒铅笔。其中3支是绿色的,11支是棕色的,2支是黄色的,5支是蓝色的。如果他随机选择一支铅笔,他最不可能选到哪种颜色的铅笔?

Yellow (Probability is 2/21)

100

What is the experimental probability of landing on GREEN?

实验中落在绿色区域的概率是多少?

9/20

200

Keely rolled a number cube that has sides labeled 1 to 6. What is the probability that she rolled an ODD number?

Keely 掷了一个骰子,骰子的各个面上分别标有 1 到 6。她掷出奇数的概率是多少?

3/6=1/2

200

Joshua reached into a bag of red blocks, green blocks, purple blocks, and brown blocks. Here is the data from his experiment when he pulled out a block and put it back in the bag. He did this 100 times.

约书亚从一袋积木里拿出红色、绿色、紫色和棕色的积木。以下是他从袋子里取出一块积木再放回袋子里的实验数据。他重复了这个动作100次。

Red: 24 times

Green: 49 times

Purple: 18 times

Brown: 9 times

What is the experimental probability of picking a brown block?

实验中选中棕色积木的概率是多少?

9/100=9%

200

Using this data, if you spun the color wheel 500 times, about how many times would you expect it to land on BLUE?

根据这些数据,如果你旋转色轮 500 次,你预计它会停在蓝色上多少次?

P(blue)=5/20=1/4

1/4 * 500 = 125 so 125 times

300

A bag contains 7 red marbles, 3 green marbles, and 4 blue marbles. If Bella draws a marble from the bag, what is the probability that it is a green marble?

一个袋子里装有7个红色弹珠、3个绿色弹珠和4个蓝色弹珠。如果贝拉从袋子里随机取出一个弹珠,那么取出的弹珠是绿色弹珠的概率是多少?

3/14

300

Use the bar graph to find the experimental probability of picking blue.

利用条形图找出选择蓝色的实验概率。

Blue was picked 6 times out of a total of 12 picks. P(blue)=6/12=50%

300

The table shows the results of flipping two coins 12 times each. What is the experimental probability of flipping heads then tails (HT)? Using this probability, how many times can you expect to flip heads then tails (HT) in 200 trials?

下表显示了抛掷两枚硬币各 12 次的结果。先抛正面后抛反面(HT)的实验概率是多少?利用这个概率,在 200 次试验中,预计会出现多少次先抛正面后抛反面(HT)的情况? 

P(HT)=6/12=1/2

In 200 trials, 1/2 times 200 = 100 so 100 times.

400

Devin rolled a number cube that has sides labeled 1 to 6. What is the probability that he rolled a 1 or a 6?

德文掷了一个骰子,骰子的各个面上分别标有 1 到 6。他掷出 1 或 6 的概率是多少?

2/6=1/3

400

Use the bar graph to find the experimental probability of NOT picking green.

利用条形图找出不选择绿色的实验概率。

Total quantity: 3+1+6+2=12

Red, Blue, Black was chosen 11 times. 

P(not green)=11/12

400

The table shows the results of flipping two coins 12 times each. What is the experimental probability of flipping two heads? Using this probability, how many times can you expect to flip two heads in 100 trials? Round to the nearest whole number.

下表显示了分别抛掷两枚硬币 12 次的结果。抛出两枚硬币都正面朝上的实验概率是多少?利用这个概率,在 100 次试验中,预计会出现多少次抛出两枚硬币都正面朝上的现象?结果四舍五入到最接近的整数。

P(HH)=2/12=1/6

1/6 times 100 is about 17 times.

500

A bag contains 8 red marbles, 4 green marbles, and 10 blue marbles. If Taylor draws a marble from the bag, what is the probability that it is NOT a red marble?

一个袋子里装有 8 个红色弹珠、4 个绿色弹珠和 10 个蓝色弹珠。如果泰勒从袋子里取出一个弹珠,那么取出的不是红色弹珠的概率是多少?

14/22=7/11

500

Use the bar graph to find the experimental probability of NOT rolling a 5.

利用条形图求出掷出不为 5 的实验概率。

1 was rolled 18 times. 2 was rolled 22 times. 3 was rolled 21 times. 4 was rolled 16 times. 6 was rolled 23 times. 18+22+21+16+23=100 and total rolls were 120. so the experimental probability of NOT rolling a 5 is 100/120 = 5/6, approximately 83.3%

500

The table shows the results of flipping two coins 12 times each. What is the experimental probability of flipping tails then heads (TH)? Using this probability, how many times can you expect to flip tails then heads (TH) in 700 trials?

下表显示了抛掷两枚硬币各 12 次的结果。先抛出反面再抛出正面 (TH) 的实验概率是多少?利用这个概率,在 700 次试验中,预计会出现多少次先抛出反面再抛出正面 (TH) 的情况? 

P(TH)=3/12=1/4

1/4 times 700 = 175 so 175 times

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