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emmainna [20.7K]
3 years ago
9

A special 8 sided die is rolled 20 times with these outcomes: 2, 4, 7, 3, 1,5, 4, 6, 3, 8, 6, 2, 5, 2, 6, 1, 7, 4, 5, 6 What is

the experimental probability of rolling a 2 or a 4? Is this number great than or less than the theoretical probability of rolling a 2 or 4?
Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
4 0
In your data set, 2 and 4 each show up 3 times. The experimental probability of rolling a 2 or 4 is 6/20 = 0.30.

The theoretical probability of rolling one of 2 given numbers out of 8 is 2/8 = 0.25. The experimental probability in this case is greater than the theoretical probability.
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Anne made a recipe for miniature bread loaves that called for StartFraction 7 Over 8 EndFraction of a cup of whole-wheat flour.
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Answer:49/8

Step-by-step explanation:7/8 times 7 is 49/8

6 0
3 years ago
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on field day, 1/10 of the students in Mrs. Brown's class competes in jumping events, 3/5 of the student competes in running even
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Of all the species in the world, 3 out of every 5 are insects. What percentage of species are insects?
Anni [7]

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perhaps 60%?

Step-by-step explanation:

3 0
3 years ago
Tangent line i think please help me find x
Alex

Answer:

x= 6.5 cm

Step-by-step explanation:

When a tangent line touches the circle, it forms a right angle triangle at that point

Apply the Pythagorean relationship in this case

Given that the height is = 20.2 cm = b

The hypotenuse is = c= x+14.7 cm

General formulae is;

a² +b² =c²

x² + 20.2² =( x+ 14.7)²

x² + 408.04= x² +14.7x+14.7x+216.09

x² + 408.04= x² + 29.4 x +216.09.........................collect like terms

x²-x² + 408.04-216.09= 29.4x

191.95= 29.4x-------------------------------divide by 29.4 t0 get x

191.95/29.4 =x

x=6.5 cm

6 0
3 years ago
twice the smaller of two consecutive integers increased by the larger integer is at least 25. what is the number?
stira [4]
x,x+1-\ two \ consecutive\ numbers\\\\
2x+x+1\geq25\\\\
3x+1\geq25\ \ \ | subtract\ 1\\\\
3x\geq24\ \ \ | divide\ by\ 3\\\\
x\geq8\\\\
It\ is\ 8\ or\ greater\ number.
3 0
4 years ago
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