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Q: What is 78 plus 79 plus 80 plus 80 plus 81 plus 81?

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Assuming you mean the arithmetic mean, it is 80.

The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456

83

The answer is 711. Simply add up all of the numbers arithmetically like you would for two plus two. To make sure the answer is correct, check your work using a calculator.

765

the mean is 79.75

81

78

237

There are an infinite number of sets with mean 80. Here are some: {80, 80, 80}, {80, 80, 80, 80, 80, 80} {79, 80, 81}, {79, 79, 80, 81, 81}, {79, 79, 80, 82} (1, 80, 159}, {-40, 200} To produce a set of n numbers with mean 80, start with any set of n-1 numbers. Suppose their sum is S. Then add the number 80*n-S to the set. You will now have n numbers whose sum is S+80*n-S = 80*n So the mean of this set is 80.

79, -79

There are infinitely many. Involving integers (whole numbers) there are: 0 + 80, 1 + 79, 2 + 78, .... 78 + 2, 79 + 1, 80 + 0, 81 + -1, 82 + -2, ..... When you include non-integers there are: ½ + 79½, 1½ + 78½, ... 1.1 + 78.9, 1.2 + 78.8, .... 3.1 + 76.9, 3.14 + 76.86, 3.141 + 76.859, 3.1415 + 76.8585, 3.14159 + 76.85841, ...., π + (80 - π)

80+1 = 81

79 & 81, or any whole number from 1 to 79 with any whole number greater than 81.

barium has 4 stable isotopes Ba-134, Ba-135, Ba-136 and Ba-17 with 78, 79, 80 and 81 neutrons respectively

77-79 Amc 4cyl. 71-72 Capri 1600 79-81 Datsun 310, 310gx 1400cc 76-79 Datsun f10 65-67 Datsun 411 1300cc 74-79 Datsun b210 70-73 Datsun 1200 78-81 Dodge Omni 78-81 Ford Fiesta 71-73 Ford Pinto 1600cc 78-81 Plymouth Horizon 68-71 Toyota Corolla 1100 & 1200 cc 74-81 Volkswagon Dasher & Scirocco (Excluding diesel types) 75-81 Volkswagon Rabbit (Excluding diesel types)

81

78 minus78

Depends on what year the car is. 76-78 models (1bbl) have an adjustment on the lower front of the carb. 79-80 models have a knockout plug on the lower-left base plate that can be adjusted and 81-87 are computer controlled via the electrical plug on the top of the unit. 81-87 also have the same knockout plate in the base plate as the 79-80's but it won't affect much.

79, 80 ,81 Phyllis youngest Christine oldest Dorothy Middle

I think it's 81 but i can't be sure...

episode 80 or 81. They break it up into 20 episode seasons. Not sure if it goes to 79 then starts with 80, or ends at 80 and starts at 81. but it shouldn't be too hard to figure out from there.

598

trevor brooking

European Cup : 1977, 1978, 1981. UEFA Cup : 1976 European Super Cup : 1977 First Division : 1946/47 (as a player), 75/76, 76/77, 78/79, 79/80, 81/82, 82/82. League Cup : 1981, 1982, 1983 Charity Shield : 1976, 1979, 1980, 1982 Manager of the Year : 1975/76, 76/77, 78/79, 79/80, 81/82, 82/83 Much deserved Knighthood still outstanding.