below is visualforce page:

<apex:pageBlock title="Open Activity" >
<apex:pageBlockTable value="{!ActivityList}" var="a">
<apex:repeat value="{!a.OpenActivities }" var="b">
<apex:column value="{!b.ActivityDate}"/>
<apex:column value="{!b.Description }"/>
</aepx:repeat>
</apex:pageBlockTable> </apex:pageBlock>

Please help me getting open Activity list on visuaforce page..Here is my code.
// Page

<apex:pageBlock title="Open Activity" >
<apex:pageBlockTable value="{!ActivityList}" var="a">
<apex:column value="{!a.OpenActivities }"/>
</apex:pageBlockTable> </apex:pageBlock>

//Controller method

public List<Lead_Inspector__c>getActivityList(){ List<Lead_Inspector__c> lst =[SELECT (SELECT ActivityDate, Description FROM OpenActivities ORDER BY ActivityDate ASC NULLS LAST, LastModifiedDate DESC      LIMIT 500)FROM Lead_Inspector__c WHERE id = :leadId ];
return lst; }
 

<apex:actionFunction name="hitMe" action="{!iWantMyJSValues}">
 <apex:param name="one" value="" assignTo="{!valueOne}" />
//passsing null value here
 </apex:actionFunction>

$(document).ready(function(){   
    $("#stars-green").rating('create',{coloron:'green',onClick:function(){
    var ratings =  this.attr('data-rating');
     alert('ratings is ' + ratings);  // getting correct value in ratings
     hitMe(ratings);
     alert('function is ' +hitMe); 
     }
     });   
});

  <div id="stars-green" data-rating="4"></div>

 public PageReference iWantMyJSValues() {
        valueOne = Apexpages.currentPage().getParameters().get('one');  // getting null value here
       system.debug('******************valueOne******************'+valueOne); 
        return null;
 
 }
 

below is visualforce page:

<apex:pageBlock title="Open Activity" >
<apex:pageBlockTable value="{!ActivityList}" var="a">
<apex:repeat value="{!a.OpenActivities }" var="b">
<apex:column value="{!b.ActivityDate}"/>
<apex:column value="{!b.Description }"/>
</aepx:repeat>
</apex:pageBlockTable> </apex:pageBlock>

Please help me getting open Activity list on visuaforce page..Here is my code.
// Page

<apex:pageBlock title="Open Activity" >
<apex:pageBlockTable value="{!ActivityList}" var="a">
<apex:column value="{!a.OpenActivities }"/>
</apex:pageBlockTable> </apex:pageBlock>

//Controller method

public List<Lead_Inspector__c>getActivityList(){ List<Lead_Inspector__c> lst =[SELECT (SELECT ActivityDate, Description FROM OpenActivities ORDER BY ActivityDate ASC NULLS LAST, LastModifiedDate DESC      LIMIT 500)FROM Lead_Inspector__c WHERE id = :leadId ];
return lst; }
 

<apex:actionFunction name="hitMe" action="{!iWantMyJSValues}">
 <apex:param name="one" value="" assignTo="{!valueOne}" />
//passsing null value here
 </apex:actionFunction>

$(document).ready(function(){   
    $("#stars-green").rating('create',{coloron:'green',onClick:function(){
    var ratings =  this.attr('data-rating');
     alert('ratings is ' + ratings);  // getting correct value in ratings
     hitMe(ratings);
     alert('function is ' +hitMe); 
     }
     });   
});

  <div id="stars-green" data-rating="4"></div>

 public PageReference iWantMyJSValues() {
        valueOne = Apexpages.currentPage().getParameters().get('one');  // getting null value here
       system.debug('******************valueOne******************'+valueOne); 
        return null;
 
 }