SAT score the national average SAT score( for verbal and math) is 1028. suppose that nothing is known about the shape of the distribution and the standard deviation is 100. if a random sample of 200 score were selected and the sample mean calculated were 1050. would you be surprised? explain

Will mark brainliest! ( explain the answer too, it can be one sentence)

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?

Aboy who is 1.8 meters tall stands 1 meter away from a lamppost and casts a shadow 2 meters long. the height of the lamppost meters.