Mathematics, 05.05.2021 20:20 coryintheswamp
ÎN PUȘCULIȚA ELENEI SUNT 90 MONEDE UNELE DE 0.50 LEI ALTELE DE 0,10 LEI ÎN VALOARE TOTALĂ DE 23 LEI. CÂTE MONEDE DE 0,50 LEI SUNT ÎN PUȘCULIȚĂ?
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Mathematics, 21.06.2019 19:30
Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 22:50
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
Answers: 3
ÎN PUȘCULIȚA ELENEI SUNT 90 MONEDE UNELE DE 0.50 LEI ALTELE DE 0,10 LEI ÎN VALOARE TOTALĂ DE 23 LEI....
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