Question
Perform the requested conversion. Round decimals to the nearest thousandth and percent's to the nearest tenth of a percent if necessary. Convert the fraction 7/11 to an equivalent decimal and percentage. 0.756, 75.6% 0.636, 63.6% 0.636, 6.36% 0.756, 756% Identify which of these types of sampling is used random, stratified, systematic, cluster, convenience, 49.34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively. Random Cluster Systematic Stratified Convenience Identify the type of observational study (cross-sectional, retrospective, prospective). A town obtains current employment data by polling 10,000 of its citizens this month. Cross-sectional Prospective Retrospective None of these Provide an appropriate response. The following frequency distribution analyzes the scores on a math test. Find the class midpoint of scores interval 40-59. 49.0 50.5 4835 49.5
Explanation / Answer
2) 7/11 = 0.636
( 7/11 )* 100 = 63.6%
Option-B is the correct answer.
3) D) stratified
4) A) cross-sectional
5) mid point of the interval 40-59 = (40 + 59)/2 = 49.5
Optuon-D is the correct answer.