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A number cube is rolled 25 times. A number less than four comes up 20 times. What is the experimental probability that a number less than four is rolled?
There is a 50% chance that a number less than four will be rolled.
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Original conversation
User: A number cube is rolled 25 times. A number less than four comes up 20 times. What is the experimental probability that a number less than four is rolled?

Weegy: There is a 50% chance that a number less than four will be rolled.
Mspanier08|Points 310|

User: When enthalpy in a system increases, the reaction is considered to be _____.

Weegy: Enthalpy of a reaction or energy change of a reaction DH, is the amount of energy or heat absorbed in a reaction. If the energy is required, DH is positive, and if energy is released, the DH, is negative. [ ]
bonaxle|Points 45|

User: The study of heat and heat changes is called:

User: The heat capacity of an object depends in part on its _____.

User: How many joules are there in 148 calories? (1 cal = 4.18 J)

User: Energy flows from _________ temperature substances to _________ temperature substances.

Weegy: Energy flows from higher temperature substances to lower temperature substances.
shelbi23|Points 12|

User: A process that absorbs heat is a(n) _____ process.

User: If the heat involved in a chemical reaction has a negative sign,





Weegy: Negative sign means the rxn was exothermic, so it lost heat, or heat was transferred to the environment.
Expert answered|latefisher|Points 2418|

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Asked 7/14/2012 5:50:52 PM
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