High Water Content Fruits. Watermelon and strawberries contain about 92 percent water per volume. Other fruits with high water content include grapefruit with 91 percent, cantaloupe with 90 percent and peaches with 88 percent water. Fruits containing 87 percent water by weight include pineapple, cranberries, orange and raspberries.
The sample variance sÂ² is the best point estimate (or single value estimate) of the population variance ÏÂ². The sample standard deviation s is commonly used as a point estimate of Ï ( even though it is a biased estimator). (Sec 6-4 showed that sÂ² is an unbiased estimator of ÏÂ², but s is a biased estimator of Ï.)
Correct, Standard Deviation is a measure of variance from the mean. One SD on either side of the mean will include about 60% of the values in the distribution of your sample. Three SD will include about 95% of the values in your distribution.The smaller the SD, the narrower your bell curve distribution will be.hat's exactly what it means. Standard Deviation and Variance is a measure of how far your set of data is away from the mean. The higher the variance or standard deviation the more larger the variance is in the data, a standard deviation of 0 means that there is NO change at all in the data. marvin0258 Â· 8 years ago.