Remember: Random means the next pick is a surprise, and nobody can know it ahead of time. A computer can pick random numbers, like shaking a bag of cards.
Read and answer
Read the story, then answer.
Shake the bagIt is game night at Tavi's house, but there are no dice in the game box. "Bo, can you roll for us?" asks Tavi. Bo thinks hard and says, "One! Two! Three, four, five, six!" "That is just counting," laughs Tavi. "We need numbers nobody can guess!" So Mina fetches a cloth bag and six paper cards, writes one to six on them, and drops them in. Shake, shake, shake! Bo pulls out a card: a four. He puts it back and shakes again. Out come a two, then a six, then a six again. Could anyone have known a six would come twice? No, and that is random. Later Bo keeps a tally of twelve rolls, and some numbers come up often, and one never comes up at all.
1
Bo counted "One, two, three, four, five, six" for his roll. Why was that not a good roll?
Everyone could guess the next numberThe numbers were too bigBo said them too fast
2
Every card in the bag has the same chance, but one can come twice in a row.
TrueFalse
3
Look at Bo's tally. Which number came up the most?
TwoSixFour
4
Bo rolled twelve times. The number three came up times.
5
Circle everything that is random.
Rolling a diceCounting one, two, threePulling a card from a shaken bagThe days of the week in orderShuffling a pack of cards
6
A six cannot come up twice in a row, because that would not be random.
TrueFalse
What is random?
7
Six came up 4 times and two came up 3 times. Together they came up times.
8
Join each word to what it means.
1random
2not random
3a surprise
4a tally
Anobody can know the next one
Byou can know what comes next
Ca count of every roll
Dno pattern to follow
9
Put game night in order.
Bo pulls a card from the shaken bag
Bo counts one to six
Mina shakes the game box and finds no dice
Mina puts six numbered cards in a bag
10
Mix-up to fix: Tavi says, "The next card must be a three, because a three has not come up yet." What is the mix-up?
Random is not tidy: it does not take turns, so nobody can know the next cardThree can never come upTavi should have counted in order
11
Stretch: Bo shakes the bag of six cards, numbered 1 to 6, and pulls one. Circle everything that could happen.
A fourA sixA six, right after a sixA seven
12
Write the numbers 1 to 6 on small papers and put them in a bag. Pull one out, write it down, and put it back. Do this five times and write your numbers.
13
Draw a cloth bag with six numbered cards peeking out.
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