Question Which statements are true about Gretchen’s adjusted data set?

The center moved farther from the center of Manuel’s data set.
The spread values are farther from the spread values of Manuel’s data set.
The center moved closer to the center of Manuel’s data set.
The data set is approximately symmetric.
The spread values are closer to the spread values of Manuel’s data set.
The data set is skewed left.

What situation is an example of an observational study

Graph the equation by plotting point x=2

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?