Mathematics, 26.11.2019 02:31 villatoroo84502
An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed, with mean equal to 800 hours and a standard deviation of 40 hours. find the probability that a random sample of 16 bulbs will have an average life of less than 775 hours.
Answers: 3
Mathematics, 21.06.2019 13:30
34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?
Answers: 2
Mathematics, 21.06.2019 21:50
Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next
Answers: 1
Mathematics, 21.06.2019 22:30
Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?
Answers: 1
An electrical firm manufactures light bulbs that have a length of life that is approximately normall...
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