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A dice was rolled multiple times. The results of the rolls are summarized by the counts of each outcome, N1, N2, N3, N4, N5, N6. Use the following clues to determine the number of times each outcome o

Mathematics

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Answer

39\text{39}

Step-by-step solution

2 steps
  1. Determine the number of throws for each dice roll (Question 1).

    Let NxN_x be the number of times the dice roll xx came up.
    We are given the following clues:

    • N2>2N_2 > 2
    • N3=2×N2N_3 = 2 \times N_2
    • N6=N2+1N_6 = N_2 + 1
    • N1=N2+5N_1 = N_2 + 5
    • N1N_1, N5N_5, N6N_6 are odd numbers.
    • N5=N6+2N_5 = N_6 + 2
    • N4=N5−1N_4 = N_5 - 1
    • Nx≤9N_x \le 9 for all x∈{1,2,3,4,5,6}x \in \{1, 2, 3, 4, 5, 6\}.

    Let's express all counts in terms of N2N_2:
    N1=N2+5N_1 = N_2 + 5
    N2=N2N_2 = N_2
    N3=2×N2N_3 = 2 \times N_2
    N6=N2+1N_6 = N_2 + 1
    N5=N6+2=(N2+1)+2=N2+3N_5 = N_6 + 2 = (N_2 + 1) + 2 = N_2 + 3
    N4=N5−1=(N2+3)−1=N2+2N_4 = N_5 - 1 = (N_2 + 3) - 1 = N_2 + 2

    Now we test values for N2N_2 starting from N2>2N_2 > 2:

    If N2=3N_2 = 3:
    N1=3+5=8N_1 = 3 + 5 = 8 (This is an even number, but N1N_1 must be odd. So N2=3N_2=3 is incorrect.)

    If N2=4N_2 = 4:
    N1=4+5=9N_1 = 4 + 5 = 9 (Odd, and 9≤99 \le 9)
    N2=4N_2 = 4 (4>24 > 2)
    N3=2×4=8N_3 = 2 \times 4 = 8 (8≤98 \le 9)
    N4=4+2=6N_4 = 4 + 2 = 6 (6≤96 \le 9)
    N5=4+3=7N_5 = 4 + 3 = 7 (Odd, and 7≤97 \le 9)
    N6=4+1=5N_6 = 4 + 1 = 5 (Odd, and 5≤95 \le 9)

    All conditions are met for N2=4N_2 = 4.

    • N2=4N_2 = 4 (more than two times) ✅
    • N3=8N_3 = 8 (twice as many as N2=4N_2=4) ✅
    • N6=5N_6 = 5 (one more than N2=4N_2=4) ✅
    • N1=9N_1 = 9 (five more than N2=4N_2=4) ✅
    • N1=9N_1=9, N5=7N_5=7, N6=5N_6=5 (all odd) ✅
    • N5=7N_5 = 7 (two more than N6=5N_6=5) ✅
    • N4=6N_4 = 6 (one less than N5=7N_5=7) ✅
    • All counts are ≤9\le 9 ✅

    The number of throws for each dice roll are:

    • For 1 dot: N1=9N_1 = 9
    • For 2 dots: N2=4N_2 = 4
    • For 3 dots: N3=8N_3 = 8
    • For 4 dots: N4=6N_4 = 6
    • For 5 dots: N5=7N_5 = 7
    • For 6 dots: N6=5N_6 = 5

    Fill in the table:

    Number of dots123456
    Number of throws948675
  2. Complete the bar chart (Question 2).

    Based on the table from Step 1, draw bars for each number of dots up to the corresponding number of throws.

    • For 1 dot: Draw a bar up to 9 on the "Number of throws" axis.
    • For 2 dots: Draw a bar up to 4 on the "Number of throws" axis.
    • For 3 dots: Draw a bar up to 8 on the "Number of throws" axis.
    • For 4 dots: Draw a bar up to 6 on the "Number of throws" axis.
    • For 5 dots: Draw a bar up to 7 on the "Number of throws" axis.
    • For 6 dots: Draw a bar up to 5 on the "Number of throws" axis.

    The total number of throws is the sum of all throws:
    Total throws =9+4+8+6+7+5=39= 9 + 4 + 8 + 6 + 7 + 5 = 39.
    The box next to "Use the table to complete this bar chart of Luke's results" should contain 39\boxed{\text{39}}.

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